XP Drivers

My computer has become slow/sluggish. What should I do?

The following are some of the ways to improve the performance of your Windows computer:

1. Disable unneeded services

Click Start and then click Run (or Search, in Vista and 7), then type the following command and press the Enter key: services.msc

If you have a standalone desktop computer at home (i.e., not networked to other computers and not an office desktop), you can safely set the following services to “manual” or “disabled”, as mentioned below. Depending on whether you have a Windows service pack installed, you may or may not see all of these services listed. Ignore the ones that you don’t see in the services list.

For each of the following services, right click it and then click Properties. In the Startup drop down menu, click “manual” and then click “OK.”

a. Set the following services to manual:

• Fast User Switching Compatibility Service
• Application Layer Gateway Service
• Background Intelligent Transfer Service
• COM+ Event System Service
• COM+ System Application Service
• Cryptographic Services Service
• Distributed Link Tracking Client Service
• Indexing Service
• IPSEC Services Service
• Network Location Awareness (NLA)
• Service Portable Media Serial Number
• Service Print Spooler Service (You may set it to automatic, if you have a printer attached and print frequently.)
• TCP/IP NetBIOS Helper Service
• Telephony Service
• Terminal Services Service
• WebClient Service

b. Set the following services to disabled:

• Alerter Service
• ClipBook Service
• Distributed Transaction Coordinator Service
• DNS Client Service
• Error Reporting Service
• Messenger Service
• MS Software Shadow Copy Provider Service (Set it to manual, if you use the MS Backup utility)
• Net Logon Service
• NetMeeting Remote Desktop Sharing Service
• Network DDE Service
• Network DDE DSDM Service
• NT LM Security Support Provider Service
• Performance Logs and Alerts Service
• QoS RSVP Service
• Remote Desktop Help Session Manager Service (Set this to manual, if you use remote desktop)
• Remote Registry Service
• Routing and Remote Access Service
• Server Service (If you’re on a network, don’t disable it )
• Smart Card Service
• Smart Card Helper Service
• SSDP Discovery Service
• Telnet Service
• Upload Manager Service
• Volume Shadow Copy Service
• Wireless Zero Configuration Service (Don’t disable it, if using a laptop and a wireless router)

2. Free up Disk Space

Click Start and then click Run. Type cleanmgr and press the Enter key.

Select the Windows drive (usually C) and then click “OK“.

Select the files you don’t want, and click OK to delete them.

You can free up more disk space by clicking on the More Options tab.

You’ll have to run the cleanmgr command, once again, to go to the More Options tab. These are the three options on the More Options tab, which would free up more disk space. You should use each of these:

• Uninstall Windows components
• Uninstall unused or rarely used programs
• Delete old restore points except the last one.

In addition to the above, you should delete unneeded files or move them to another partition, drive, or back them up to CD/DVD or USB flash drives. Check your My Documents folder and see how much space it takes!

3. Disable some startup items in MSConfig

Run the command msconfig and click the “startup” tab.

Uncheck any items that you don’t need at startup. Some apps run their services, which enable them to start fast (like MSOffice, Acrobat Reader, etc). Expand the heading named ‘Command‘ so that you can see what command is being executed for each startup item. To expand the Command heading, hover the cursor near the right end of the Command column. When the cursor becomes a double arrow, double click with the left mouse button to expand it.

This will help you understand which items are not needed at startup.

After clicking OK, if msconfig asks to restart, you may restart, or just click ‘Exit without restart‘, if you are doing some other work. After you reboot, msconfig will show this dialog box. Just check the “Don’t show this message …” checkbox and click on “OK“.

4. Remove some items from the Windows Startup group

Check the startup folder under Start -> All Programs. Remove any items that are not needed or not used often. They are just taking up system memory, because they are running all the time in the background. You can run these programs as and when needed.

5. Clean up your Registry

Clean up your registry regularly.  Use a free program like ccleaner. It also has an option to optimize (compress) the registry, but NT Registry Optimizer is better at compressing and optimizing the registry. You may also download and use the Emergency Recovery Utility from the NT Registry Optimizer page, for backing up your registry regularly and automatically, from the NT Optimizer page.

6. Remove unneeded/unused fonts

Remove unneeded or unused fonts from the Control Panel -> Fonts. Many software applications install their own fonts in addition to the standard Windows fonts. There are too many unused fonts sitting in the fonts folder, which never get used. Each of these fonts takes valuable system memory and Windows loads all the fonts from the \Windows\Fonts folder into the RAM, when it starts.

You can safely remove many of these fonts. When in the Fonts folder, click on the View menu and click ‘Details‘. You can double-click each font to view it, before clicking delete. If you think you might need these fonts in the future, you can move the unneeded fonts  to another folder on your hard drive instead of deleting them.

7. Enable Cleartype for LCD Monitors

If you have an LCD monitor or a laptop, click Start -> Run. Then, type the command, desk.cpl and press the Enter key. Click the Appearance tab on the Display Properties. Click Effects and check to enable the second option (select ClearType if it isn’t already selected).

You can uncheck the ‘Show shadows under menus‘ and ‘Show menu contents while dragging‘. You may also want to download the cleartype tuner from Microsoft.

8. Defrag the Windows drive

In “My Computer” or Windows Explorer,

1. Right click Drive C (or whichever drive, Windows is installed on),
2. Select Properties
3. Select the Tools Tab.
4. Click ‘Defragment Now‘.
5. Then, click the ‘Analyze‘ button.

If defrag recommends that you defragment the drive, proceed with it. This would make Windows and applications load a little bit faster. You may want to run a disk error check from the same “Tools” tab, before you defrag the drive.

9. Disable short file names to speed up Windows

By default, Windows XP and Vista create 8.3 format filenames for all files. This is done to maintain compatibility with 16-bit (old DOS based) programs. These programs need the old filename format. If you don’t use any such DOS-based programs, you can safely turn this feature off. This will speed up Windows to some extent. Run this from a command prompt, by running the command – cmd from the Run box.

The command is:

fsutil behavior set disable8dot3 1

Note: Windows XP environment variables %TEMP% and %TMP% use short filenames. Some programs use these variables. If disabling short filenames causes problems, restore the short name function with the command:

fsutil behavior set disable8dot3 0 

10. Disable timestamp for last access to a file to speed up Windows

Disabling the timestamp for last access time of a file can speed up Windows too, because Windows doesn’t have to keep track of the last access time for each file. Again, run this from the command prompt:

fsutil behavior set disablelastaccess 1 

Some backup programs need to access timestamp. To restore it, use the command:

fsutil behavior set disablelastaccess 0 

11. Disable DLL caching

(NOTE: Use this only if you know how to edit the Registry)

Windows Explorer caches DLLs (Dynamic-Link Libraries) in memory for some time, even after the application using them was closed. This is a waste of memory. To stop Windows XP from always caching DLL files, create a new registry key as detailed below.

Click Start and then click Run. Type regedit and press the Enter key. In the Registry Editor, navigate to the following key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer

Create a new sub-key named ‘AlwaysUnloadDLL‘ and set the default value to ‘1′.

This would disable Windows, caching the DLLs in memory. The change would happen only after you restart Windows.

12. For Windows Vista, disable superfetch

Run the following command from the Search box:

sc config Superfetch start= disabled

(The space after the = sign is intentional)

13. Disable the Windows’ built-in zip feature

It’s common to have many zipped or compressed files in today’s computer world. Windows XP and later have a built-in zip feature, which allows you to view zip files as normal folders, from within Windows Explorer. This can take quite an amount of CPU time in uncompressing the files on the fly. So, you should disable this feature and use a program like Winzip, to open zip files. Since Windows treats zip files as folders, they are also searched, when you search for a file, making the searching extremely slow.

To disable this feature, in the Run box, type the following command and hit the Enter key:

regsvr32 /u %windir%\system32\zipfldr.dll

The above command, without the ” /u ” would again enable the zip feature, if it’s disabled. A reboot is required for the changes to take effect. These commands may not work in Windows 7 or Vista. If you are new to Windows, you may like this feature, and may not want to disable it.

14. Optimize VGA settings

In Display Properties, click the settings tab and then click the ‘Advanced‘ button. Click the ‘Troubleshoot‘ tab and check that the hardware acceleration is set to full.

15. Disable Extra Visual Effects

Right click My Computer and then click Properties. Click the Advanced tab, then click “Settings” under Performance, then select the Visual Effects tab.

Uncheck all the settings except for the following:

• Show shadows under menus
• Show shadows under mouse pointer
• Show translucent selection rectangle
• Smooth edges of screen fonts
• Use drop shadows for icon labels on the desktop
• Use visual styles on windows and buttons

16. Adjust Paging File size

In My Computer Properties page, click the Advanced tab and under Virtual Memory, make sure that the initial size is at least 1.5 times your computer’s physical memory (RAM). For example, if your computer has 512 MB of RAM, set the initial paging file size to 768 MB. If you are confused, don’t play with the settings and let Windows manage the page file size.

For optimal performance, read Bill’s and Petri’s pages about paging file and Windows performance. You can then use Doug Knox’s page file monitor utility and set the initial page file size accordingly. If you want the best performance, you can buy 2 GB or more RAM, then set the minimum paging file size to 2 MB and maximum, to 50 MB. This can dramatically improve performance.

17. Install good AntiSpyware and Antivirus programs, then run them periodically

Install Malwarebytes’ Antimalware and SuperAntiSpyware. Both are free. Note that Malwarebytes’ Antimalware doesn’t always keep running and you can manually scan files or drives when needed. But SuperAntiSpyware keeps running in the background, scans each file whenever you or the computer accesses it, and sits in the system tray. This slows the computer down, so you should remove it from the startup by using the MSCONFIG utility and then run it manually, whenever needed.

You may also want to install a free antivirus program like AVG or Avast. Both are light on resources and free too. Never install two Antivirus programs on the same computer, although you can install two AntiSpyware programs. You can, however, keep another Antivirus bootable CD or a Virus removal tool, to use once in a while. Any Antivirus program takes away a little of your computer speed because of the on-access and background scans. It’s best to leave the on-access scan enabled.

Kaspersky is one of the best Antivirus programs and even though it is not free, they offer their Kaspersky Virus Removal Tool for free here. Here’s a Kaspersky Bootable Rescue Disk ISO image, which you can download and burn on to a CD and boot the computer from it. After booting, if an Internet connection is available, you can update it online and then scan the computer.

18. Enable DMA / UDMA in Device Manager for each drive

Click Start -> Run. Then, type devmgmt.msc and hit the Enter key. In Device Manager, expand the IDE ATA/ATAPI controllers. For each device under this category, double click the item and click the Advanced Settings tab. Make sure that DMA if available is selected for each device.

19. Install Microsoft Tweakui Powertoy

Download and install the Microsoft TweakUI Powertoy. It has many Windows tweaks and options that you can enable or disable with a simple mouse click. There are surely some that you’d like to use. To  know more, what it can do for you, click here.

From the Microsoft TweakUI page: “This PowerToy gives you access to system settings that are not exposed in the Windows XP default user interface, including mouse settings, Explorer settings, taskbar settings, and more.”

20. Periodically, reinstall Windows

It’s a good practice to periodically reinstall Windows. Don’t forget to backup your data files before the reinstall. If your system is infected with too many viruses or malware it may be better to format the hard drive and then reinstall Windows.

Here are some Youtube videos about installing Windows:

For installing/reinstalling Windows XP:

http://www.youtube.com/watch?v=P_932T4FAAY

http://www.youtube.com/watch?v=XSJTgvet9QY

http://www.youtube.com/watch?v=n0cop_am1WM

http://www.youtube.com/watch?v=Wf2Ffm33DhA

For installing/reinstalling Windows Vista:

http://www.youtube.com/watch?v=VeBjxHm19pk

http://www.youtube.com/watch?v=puY4vRhAKYo

It can be quite time consuming and a big hassle backing up your data, re-installing Windows, then re-installing the proper drivers and software programs and then restoring the data. You can use a professional disk imaging program like Acronis True Image or Norton‘s Ghost to  “image” your already installed and working copy of Windows, along with drivers and software programs.

These programs are very nice, but not free. However, here’s a link to a similar free disk imaging program from Easeus. Using these programs takes 10 minutes or less to restore the whole Windows partition, with everything installed. There are a dozen such freeware programs listed and detailed here.

21. Upgrade the RAM

The more the amount of RAM, the more the number of simultaneous applications you can run. Nowadays, 1 GB and 2 GB RAM is pretty common.

Here is a youtube video on how to properly install the RAM, if you want to upgrade or add more RAM.

Click here to search for RAM prices.

The Sound on my computer is not working. What should I do?

OR

I can’t hear any sounds from the speakers or play any music on my computer. What is the problem?

There can be more than one reason, why the computer can’t play any sounds. These are discussed below.

If you have a desktop computer, it may or may not have a separate sound card. But in case of laptops, the sound card is integrated into the motherboard and cannot be removed, so some of the solutions may not apply to laptops.  Also, laptops come with built-in speakers, so the external speakers and cabling problems may not apply here, unless you use external speakers or headphones.

So, where do you start, when you can’t hear any sounds from your computer?

1. Reboot the computer

Before we start with the solutions, did you try the simplest solution first? Rebooting or restarting the computer is the simplest solution and should be tried first. If you didn’t already reboot, try it now. The sounds may just work after a reboot.

2. Enable the System Sounds

Can you hear the Windows startup sounds from the computer? If you can hear the Windows startup and shutdown sounds, the sound card is working fine. If you can’t hear any startup sounds, enable the System Sounds from the Control Panel, if they are disabled.

If you aren’t able to enable the system sounds and they are grayed out, you may need to reinstall the sound driver.

3. Is the problem only with an audio CD?

Are you trying to play an audio CD, and not getting any sound? If you can hear the System Sounds, but can’t hear anything from the audio CD, even though your audio player software shows that it’s playing the disc, the problem is most likely with the digital cable (see image 1 below) that goes from the CD/DVD drive to the sound card (image 2 below) (or to the motherboard).

One side of this cable goes into the back of the CD/DVD drive and the other goes into the sound card or on to the motherboard (in case of motherboards with built-in sound).

4. Are the speakers properly connected?

Are the speakers connected to the proper sound port / jack, at the back of the computer? Are they powered ON? External speakers generally have a separate power adapter, which plugs into the wall socket or any other power source. Is the speaker volume control, set to a comfortable level? If not, turn it to the middle position.

If in doubt, test your speakers by connecting them to another sound device like CD/DVD player or a radio/tape player, or any sound source. If you can hear sounds from the speakers, they are fine.

Check that the speaker pin is connected to the green jack at the back of the computer.

Also, check that the sound (check speaker icon in the system tray) isn’t muted. Such a simple thing, which can happen accidentally, can confuse some people when they can’t hear sounds from their computers. This can get overlooked because the speaker icon may be lost between many other icons.  Click it and un-mute the sound, if it’s muted.

Note: If you can’t see the speaker icon in the system tray, you may need to enable it from the Control Panel. From the Control Panel, double-click “Sound and Audio Devices” and check the box that says “Place volume icon in the taskbar” and click OK.

5. Test with a pair of headphones

Try plugging in a pair of headphones in place of the speakers, to check whether you can hear anything. Play a song or music CD or any sound file, which you may have on the computer. If you don’t have one handy, you can run a command to test your sound:

Click the Start button, and then click Run (or Search, in Windows 7 / Vista). Type the following command and then press the Enter key:  dxdiag

If you can’t see the name of the sound driver, or aren’t able to hear the sound by using the ‘Test DirectSound’ button, or you get an error, the problem may be with the sound driver. Reinstall the sound driver.

6. Try doing a System Restore

If the sound worked sometime ago and now it isn’t working for some reason, the simplest solution for re-installing the sound driver is to do a System Restore. Restore the system to a date that you know, when your sound worked. Check out the following links for a youtube video and short tutorials on System Restore.

Note: Current documents, files and e-mails are not affected by System Restore. If you get an error like “Restoration Incomplete. Your computer cannot be restored“, undo the last action by selecting “Undo my last restoration”. If you restored the system recently, the “Undo my last restoration” option is displayed in the System Restore list. You can use it to undo your most recent restore. This option is available only after you do a restore.

Here’s a youtube video on how to restore a system with System Restore.

Here are step-by-step tutorials on System Restore:

For Windows XP:

http://www.howtogeek.com/howto/windows/using-system-restore-in-xp/

http://www.5starsupport.com/faq/xp-system-restore.htm

For Windows 7 or Vista:

http://www.howtogeek.com/howto/windows-vista/using-windows-vista-system-restore/

http://www.vistax64.com/tutorials/76905-system-restore-how.html

For more information about System Restore, visit the following links:

http://windows.microsoft.com/en-US/windows-vista/System-Restore-frequently-asked-questions

7. Manually, diagnose the sound driver

If System Restore didn’t help or you get a message that System Restore couldn’t be completed, try the following:

Start the Device Manager (Start -> Run -> devmgmt.msc and hit the Enter key).  In Device Manager, Click the + sign next to “Sound, video and game controllers”. See that the sound driver that you noted from dxdiag above, is listed.

Doube-click this sound driver. Device Manager should give a status message that the driver is working fine. If the driver isn’t there or if it shows a yellow exclamation mark, shows under other devices, or gives any other kind of status message, or there’s no sound driver at all, reinstall the driver. In any case, it doesn’t harm to reinstall the sound driver.

From this sound driver properties page, you may also click the Troubleshoot button, to open the Sound Troubleshooter in the Windows Help and Support Center.

You can also visit the following link about tips for fixing common sound problems:

http://windows.microsoft.com/en-US/windows-vista/Tips-for-fixing-common-sound-problems

8. Enable/disable the built-in sound support in the BIOS

If your motherboard has built-in sound support, make sure that it’s enabled in the System BIOS/CMOS. However, if you have a separate sound card, and your motherboard’s built-in sound is also enabled in the BIOS/CMOS, there can be a conflict between the two sound cards. In this case, disable the built-in sound support from the BIOS/CMOS, if it’s not already disabled.

Here’s a video on how to enter the System BIOS/CMOS:

http://www.youtube.com/watch?v=VLaoajhiN_k

And here’s another one:

http://www.youtube.com/watch?v=Tc1t3c5Yke8

Here’s a three-part video about everything you would want to know about the System BIOS/CMOS settings:

http://www.youtube.com/watch?v=qKaKj6uRLSM

http://www.youtube.com/watch?v=VLaoajhiN_k

http://www.youtube.com/watch?v=exU85jk9UyM

9. Reinstall Windows

If your motherboard’s built-in sound isn’t working, even after re-installing the sound driver, doing a System Restore, you can try reinstalling Windows.

Here are some youtube videos about how to re-install Windows:

For installing/reinstalling Windows XP:

http://www.youtube.com/watch?v=P_932T4FAAY

http://www.youtube.com/watch?v=7usco-1nXGg

http://www.youtube.com/watch?v=XSJTgvet9QY

http://www.youtube.com/watch?v=n0cop_am1WM

http://www.youtube.com/watch?v=Wf2Ffm33DhA

For installing/reinstalling Windows Vista:

http://www.youtube.com/watch?v=VeBjxHm19pk

http://www.youtube.com/watch?v=puY4vRhAKYo

If you have to re-install Windows, you may want to backup any critical data files on to CD/DVD discs or USB flash drives/portable hard drives, before starting the installation. Click here to search for prices on flash drives and here for portable (external) hard drives.

10. Add a separate sound card

If your motherboard’s built-in sound isn’t working, even after re-installing the sound driver, doing a System Restore and re-installing Windows, you need to add a separate sound card. The easy option for non-technical people is to get a USB sound card. Such a card is also helpful, if your motherboard has no free expansion slots for an add-on sound card.

What are USB Sound Cards? USB sound “cards” are actually external boxes that plug into the computer via USB. The sound is produced in the software which runs on the  computer. These boxes only provide for connectivity from the pc via the USB bus to an external device like a microphone or line in/out connector. It’s more appropriate to call them as audio interfaces.

Click here to search for prices on Sound Cards.

11. Update the sound driver

Here’s an easy way to download and install/update your sound card driver

12. Inspect the sound card

If updating the drivers didn’t help and if you have a separate sound card (not a built-in one on the motherboard), it’s possible that the drivers are correctly installed, but the sound card was displaced a little bit from its slot. This may be because there’s no screw holding it, or the card’s face plate misaligned with the computer case, which caused a loose contact between the card and the slot.

If you suspect this, you should power the computer off, unplug the power cord from the wall outlet, open up the computer and pull out the card. Then, re-insert it firmly into the slot or insert it into another slot, if you have another one free. Make sure to tighten the screw, which fixes the card to the case, and put one there, if it’s missing. Here’s ayoutube video about installing a sound card.

13. Test the sound card with a Linux Live CD distro

If none of the above methods worked, power off, unplug and open up the computer. Then, pull out your sound card andtest it in another computer.

You can also download and boot from an Ubuntu Linux disc (about 700 MB), or the very light DamnSmallLinux (50 MB only), just to test the card, in case you can’t test your card in another computer.

You’d need to burn the ISO file with the “burn image to disc” option, in your CD writing software. To know more, how to burn ISO files, visit these links:

http://pcsupport.about.com/od/toolsofthetrade/ht/burnisofile.htm

http://www.petri.co.il/how_to_write_iso_files_to_cd.htm

14. Downgrade to Vista or XP, if using Windows 7

If you tested your sound card and it worked with another system, and you have Windows 7 on your computer, it’s most likely that Windows 7 doesn’t support your sound card yet. Here, you have two options – downgrade to Windows Vista or XP, or get a sound card which is supported by Windows 7.

Here’s a list of Windows 7 supported sound cards from Microsoft.

This page lists Windows 7 compatible hardware and software.

Check the compatibility status of your software and devices, here.

If the card didn’t work even with another system, try another sound card.

15. Test by using a different USB port

If the card is a USB sound card, try connecting it to a different USB port, especially the ones at the back of the computer, if you tried only the front USB ports. If you can’t get the card to work, try it on another computer. If it works on the other computer, the problem may be with the USB ports on your computer.

Test your USB ports by connecting other USB devices. You may also try removing the USB drivers from the Device manager and let Windows re-install them upon reboot. If  your computer doesn’t recognize any USB device, try the solutions in “Troubleshooting USB connections”.

16. More information

For more information, visit the following links:

http://answers.microsoft.com/hi-in/default(en-us).aspx

http://social.answers.microsoft.com/Forums/en-US/xpmusic/threads?filter=answered

Here’s a video about troubleshooting sound issues. If you can’t hear any sound on your computer, you should watch it on some other computer where sound works, so you can hear the guy.

I press the button to turn the computer on, and the button lights up. Nothing appears on the screen and after about 2 seconds, the computer turns itself off.

I have pulled the power cord out and in, hoping that would fix it, but nothing happened.

Is there any way to turn the computer on?

This problem is most likely due to a faulty power supply. The power supply isn’t stable. Test by using a power supply from another computer, if you can, and replace your power supply with a good or new one.

Here is a youtube video which shows how to replace a power supply:

If your computer gives a musical siren for sometime, before finally powering off, it’s shutting down because of the CPU overheating protection circuit. This may happen if there’s a loose heat-sink/fan.

Also, check your RAM. It doesn’t harm if you remove and re-insert firmly. Here is a youtube video on how to properly insert the RAM:

If the processor power supply cable (from the power supply) isn’t connected on to the motherboard, this may also cause the computer to shut down.

Does the system freeze with minimum parts?
Only keep the minimum components, that is – motherboard, power supply, minimum RAM, processor (with heat-sink and fan) and the video adapter. If the motherboard has built-in video, use that instead of an add-on card. Remove / disconnect everything else.

Does the computer still power off? If it works with minimum parts, then the problem may be with the other add-on cards, disk drives etc. Connect the other cards and drives one by one and test by powering up. This way, you’ll know what is the cause of the problem.

Audio drivers for your computer can come in many different types depending on the computer  and operating system you are using. One typical audio driver that is often found on many PC  systems is the Realtek AC 97 Audio driver. When there are problems with sound from your PC, you will need to troubleshoot your sound card  to find the cause. This can involve many steps so to help with the process of troubleshooting RealTek on your system we have compiled the following steps:

1. Check the BIOS settingsThe first thing you need to consider when encountering problems with RealTek AC97 is the settings on the BIOS, especially if the computer is newly-bought. The audio controller for your computer may be disabled. You may also encounter this issue when you have recently reset your BIOS settings to defaults, or when you just upgraded or “flashed” your BIOS.

   To go to the system BIOS, you need to restart your computer. Then, while the computer is performing some memory tests, press the F2 (or delete) key repeatedly until you see the BIOS screen of your computer. The following image shows how the BIOS screen looks like:

   

   BIOS utilities may differ in interface and parameters, depending on the manufacturer. The above figure displays an AwardBIOS setup utility. If you there is anything unclear with your BIOS setup, consult your manufacturer’s documentation.

2. Clean the Prefetch and Temp Folders (Windows only)Some temporary files that your operating system has created may prevent your AC97 driver from functioning correctly. In order to remove those files, you may need to log in to your system in safe mode. To enter safe mode, restart the computer, and while the system is performing memory tests, press F8 repeatedly until you see the Windows Boot Menu. Select either Safe Mode or Safe Mode with Networking in the menu. Note that if you see Windows XP loading without displaying the boot menu first, then your computer will enter in normal mode and not in safe mode. You will need to repeat the procedure all over again, until you have successfully entered the Windows Boot menu and selected safe mode as the boot option.

   You may need to restart the computer after cleaning the prefetch and temp folders.

   

3. Reinstall the Device Driver The reinstallation of a device driver generally involves two steps:
   • • Uninstallation of the driver
     • Fresh installation of the driver

   To completely reinstall a driver, the uninstallation of the current driver is necessary. This is to ensure that all driver files will be replaced.

   To uninstall the RealTek AC driver, go to the device manager by clicking on Start and giving a right-click on the My Computer or Computer icon. Then, click on Manage. The Computer Management window would appear. Click on Device Manager and the window would display all the devices installed on your computer. Click on the plus (+) sign before Sound, video and game controllers. Right-click on the AC97 audio controller. Then, click Uninstall.

   

   There is another way of going to the device manager. Click on Start->Run. Then, type devmgmt.msc. Press enter and these steps will lead you to the same device manager.

   For a Realtek install, you may use the driver installation CD, download the latest RealTek ac97 driver from the manufacturer, or run a system scan to automatically update the RealTek AC97 Drivers. When installing the driver from the CD, simply insert the CD into your optical drive. You will then given the necessary instructions in installing your device driver.

   Alternatively, a RealTek 97 driver download is available at the Realtek website, or at third-party Realtek download sites. You should be able to find there the correct driver for your operating system, especially a Realtek driver for Windows XP. If the downloaded file is in compressed (ZIP format), you will need to extract the ac97 drivers first. Then, simply run the setup application and follow the installation instructions.

   If the controller is missing in device manager, it means that the driver is not currently installed on your computer. Skip the uninstallation phase and proceed with the installation of the driver. If the controller is followed by a yellow question mark (?) or exclamation point (!), there is a problem with the device driver currently installed on the system, and the instructions in this troubleshooting step must be strictly followed.

   Before uninstalling the Realtek driver AC97, make sure you already have a copy of the driver installation files so you wouldn’t end up with a driverless device. Uninstalling the driver for a device would render that device completely unusable by your computer.

   You will need to restart your computer for the changes to take effect. Restart right after uninstalling the driver, and after reinstalling it.

   Reinstalling a device driver is a lengthy process. If you don’t want to get involved with this procedure for some reason, you may run this automated driver scanner to install the correct driver for your sound card with less effort on your part. This is particularly useful when the driver CD is missing, or you encounter issues with a Realtek download.

4. Reinstall the Chipset DriversIn some computer systems, chipset drivers also play a part in the performance of your audio device. If you still encounter a problem with the device after installing the driver, you may need to reinstall your computer’s chipset drivers.

   To reinstall the chipset drivers, simply follow the instructions as mentioned in the previous troubleshooting step (Reinstall the Device Driver). The only difference is that you need to find where the chipset drivers are located in your device manager. They are usually found under Display Adapters.

5. Download the Latest Updates for Your Operating System

   If the device is still not working after performing the steps mentioned above, you may need to perform an update on your operating system. Your operating system will usually notify you if there are critical or important updates that would need to be downloaded and installed on your computer. For windows users, you may update your OS by clicking on Start->Control Panel and then selecting Windows Update.

6. Test another sound card

   If you have reached to this point in troubleshooting and the device is still not working, you may need to test the functionality of your sound card. Remove your sound card and replace it with a similar device that is known to be in good condition. If the newly-installed sound card solves the issue, the other sound card is faulty and may need to be replaced. Otherwise, proceed to the next troubleshooting step.

   If you are using a sound controller integrated into your motherboard, or if there is no alternative sound card available, ignore this troubleshooting step and proceed to the next one.

   Each type of computer has its own architecture. For instructions in removing and installing the sound card for your computer, consult your manufacturer’s or distributor’s documentation.

7. Reinstall the Entire Operating System

   Reinstalling the operating system may not sound good. But if the previous troubleshooting steps did not resolve the issue with the AC97, this procedure may be necessary.

   If this is the first time that you are going to reinstall the operating system, you may need to ask for professional help. Contact one of your computer or operating system manufacturer’s technical support staff for assistance.

   Make sure you backup your important files first before performing this step, since this procedure will wipe out everything in your hard drive.

8. Flash the BIOSEvery device on your computer has its own driver. But how about the motherboard? The fact is, the BIOS is somewhat the “driver” for your entire motherboard.  It synchronizes almost every hardware installed on your computer system. Flashing the BIOS is similar to updating your operating system e.g. Windows update, etc., except the fact that with this procedure, you are dealing with your BIOS and not with your OS.

   Before flashing your computer’s BIOS, you will need to determine where your computer system came from. If your computer system is custom-built, visit the manufacturer of your system’s motherboard for the BIOS updater application. If your system is pre-built by computer manufacturers such as Dell, Asus, or HP, visit their website and see if there is an update available.

   Make sure you have performed the previous troubleshooting steps before going on with this procedure. You may skip reinstalling the operating system and do this right away, especially if you do not have the time or the resources needed to install a fresh copy of your OS into your computer. However, this is not advisable. If your BIOS experienced an error during flashing, the process can ruin your motherboard. This is the reason why flashing the BIOS is one of the most feared steps in computer troubleshooting. Should you feel uncomfortable in performing this procedure, you may need to request assistance from professionals.

9. Replace motherboardProvided that all of the above-mentioned troubleshooting steps have been performed, and the problem still persists, this may mean that your motherboard is unable to handle your AC97 device correctly, and may need to be replaced.

Q. Help, my CD drive or DVD drive is missing?

A. I am taking this to mean your CD/DVD drive is not recognized, so you can’t play a CD or DVD.

You probably have either corrupted or deleted Windows registry entries. To solve this problem, you need to use the Registry Editor. ***Note: By using Registry Editor, you are modifying the registry. Serious problems might occur if you modify the registry incorrectly. Make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. For more information about how to back up and restore the registry, click here to read the article in the Microsoft Knowledge Base.

Make sure you are logged into your computer as a administrator.

1. Click Start
2. Click Accessories, and then click Run.
3. Type regedit, and then click OK. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
4. In the navigation pane, locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
5. In the right pane, click UpperFilters.
   *Note – You may also see an UpperFilters.bak registry entry. You do not have to remove that entry. Click UpperFilters only. If you do not see the UpperFilters registry entry, you still might have to remove the LowerFilters registry entry. To do this, go to step 8.
6. On the Edit menu, click Delete.
7. When you are prompted to confirm the deletion, click Yes.
8. In the right pane, click LowerFilters.
   *Note – If you do not see the LowerFilters registry entry, unfortunately this you will need to contact Microsoft for additional support.
9. On the Edit menu, click Delete.
10. When you are prompted to confirm the deletion, click Yes.
11. Exit Registry Editor.
12. Restart the computer.
13. Click Start button, click Computer, and then see whether the drive is listed.

If you can’t play or access a CD or DVD, you might have to reinstall some programs. Some programs might not be able to use your CD or DVD drive until you reinstall those programs. If the problem occurs again when you install or uninstall those programs, check to see if the manufacturer of the program has an update available. Some examples of programs that might be affected are:

• iTunes software by Apple
• Nero software by Nero Inc
• Roxio Creator software by Sonic Solutions
• Zune software by Microsoft

After reinstalling your programs, if you can play or access a CD or DVD, you are finished (yahoo!)  if the drive is not listed, remove and reinstall the existing drivers.

1. Click Start button, and then click Control Panel.
2. Click System and Maintenance, click System, and then click Device Manager.
   *Note If Control Panel is in Classic View, double-click System, and then click Device Manager. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
3. In Device Manager, expland DVD/CD-ROM drives, right-click the CD and DVD devices, and then click Uninstall.
4. When you are prompted to confirm that you want to remove the device, click OK.
5. Restart your computer.

After the computer restarts, the drivers should be automatically installed.

Having problems with your USB connections?

This can be a tricky problem to troubleshoot because of the fact that each USB device requires different hardware settings, which can conflict with other USB devices. Since multiple USB devices share a single path into your computer, it can be confusing (and time consuming) trying to isolate the problem.You might be dealing with driver issues on a single USB device, compatibility issues between the devices plugged into the same USB slot on your computer, or even a problem with your USB cord or slot in your computer.

Before you start troubleshooting a USB problem, double-check the fundamentals: Does your USB cable have a good connection? Confirm that any USB hubs are properly connected and plugged in to powered electrical outlets. Many failures can be traced to unplugged equipment or devices that are plugged into outlets that are not receiving power.

To isolate the problem, have a simple USB device that works properly on another computer, such as a USB mouse. You can test this device on the computer experientcing the problems to verify that the USB port, not a faulty device or cord, is causing the problem. Here are some other common issues with USB connections and how to fix them:

• No USB device will work

Possible causes: Operating system compatibility, controller/hub compatibility, configurations for USB controllers, controller drivers

Make sure that your operating system supports USB, then check all of your devices to make sure they are supported by the controller. Next, check the controller’s settings and drivers. (Each of these things must be compatible with each other.)

• All devices occasionally stop working at the same time

Possible causes: Controller drivers, Power management, USB controller configurations, bandwidth

Bandwidth can be an issue if several devices are transferring large amounts of data. Common devices that hog bandwidth include printers, scanners, hard drives, cameras, and DVD/CD drives. To solve this, you might try dividing the USB devices between different USB root hubs.

If your system experiences sporadic controller failure, you probably have a problem with power management. You might have bus-powered scanners or hard drives that are drawing more power than your computer can provide. If your computer requires more power, try replacing your computer’s power supply with one that provides more watts.

• Several devices work fine, but others won’t work

Possible causes: Controller/hub compatibility, USB controller configurations, power management, controller drivers, device drivers, bandwidth

First move one of the working devices to another root hub to see if the problem is in a particular root hub or with the devices themselves. Next, remove external hubs from the equation to see if they are the problem. Try the problematic devices individually on the computer. If they work, it’s either a device driver or power issue. If they don’t work, it’s a controller compatibility issue, a device driver problem, or a lack of bandwidth. To solve compatibility issues and driver errors, try updating the drivers.

• Several devices occasionally stop working at the same time, while others are fine

Possible causes: Power management, device drivers, bandwidth

First, try to isolate the particular event that’s common to all failures. Your system might be experiencing a sporadic controller failure if your devices are split across root hubs. Try moving the devices to another root hub to see if the problem is in a particular root hub or the devices themselves. Remove external hubs from the equation to see if they are the problem. Try the problematic devices individually on the computer. If they work, it’s a device driver, power issue, or bandwidth pinch.

• One device never works

Possible causes: Device drivers, Controller/hub compatibility, Power management

If the device works on another computer, check to make sure it is compatible with your controller. If your device is bus powered and it never activates, lights up, or registers with your computer, then a power issue may be to blame. Next, check your drivers to see if they are compatible or need updated.

• One device occasionally stops working

Possible causes: Device drivers, power management, bandwidth.

Again, isolate the particular event that’s common to all failures. Move the device to another root hub to see if the problem is in a particular root hub or the device itself. Remove external hubs from the equation to confirm they are not the problem. Also, try using the device when no other USB peripherals are connected. You probably have a driver problem, but it could also be a problem with the power or bandwidth.

Solving USB Issues:

Operating system compatibility
Several operating systems don’t support USB:

• Some Windows 95 releases
• Windows NT
• Mac OS prior to 9
• Linux kernels prior to 2.2.7

If you’re using Windows 95, go to USB.org, check the FAQ, and download the USBReady.exe program, which will tell you if your Windows 95 computer is USB compatible. The new USB 2.0 standard may require additional drivers or patches that aren’t included with the OS. Check the device’s documentation for more information.

Controller/hub compatibility
USB computers manufactured more than a year ago are limited to USB 1.1 devices. USB 2.0 is much faster and is usually backward compatible with the older 1.1, but it’s possible that a USB 2.0 device could refuse to work on a USB 1.1 controller or external hub, so check to see if there’s a compatibility issue.

Assuming a firmware update is available, you may need access to a USB 2.0-equipped computer to apply it. Check the manufacturer’s Web site for information on using your USB 2.0 device in a USB 1.1 system.

Configurations for add-on USB controllers
Check the Windows Device Manager to see if the USB controller is recognized or is experiencing a conflict.

• For Windows 2000:
  Click Start, Programs, Control Panel, System. Then choose the Hardware tab, and then click the Device Manager button.
• ForWindows XP:
  Click Start, Control Panel, select the Systems applet, click the Hardware tab, and then click the Device Manager button.

The Device Manager will likely refer to the USB controller as a USB Root Hub, USB Controller, or USB Bridge. The usual suspects of IRQ addresses and memory address conflicts are the first things to check. PCI devices shouldn’t have many problems, being Plug and Play, but EISA cards may require more adjustment.

If the hardware appears to work, reinstall the drivers. If that fails to resolve the problem, relocate the card to another slot in case a master/slave configuration error is occurring.

Integrated USB controller settings
If you suspect the trouble is with your USB controller settings, check the Device Manager for a conflict. Depending upon how well integrated the controller is with Windows, you may be able to adjust the IRQ or memory address settings from the Device Manager.

Next, try rebooting your computer and entering the BIOS configuration. USB settings are usually listed in the “peripherals” section. You’ll need to check for an entry marked “USB Controller” that is off or inactive. If this entry is already active, check the IRQ and memory addresses. Use the Device Manager to ensure that no other device is using those settings. You may need to reboot a few times to find a valid IRQ/memory address combination that won’t conflict with other devices.

If the hardware settings are fine, reinstall the drivers.

• USB keyboards
  When editing the BIOS, enable “DOS USB Keyboard Support.” Enabling this option will allow you to use a USB keyboard when booting a system with a boot disk.
• Controller drivers
  Check the motherboard manufacturer’s web site for driver updates. Many motherboard suppliers release driver combinations that include a number of hardware drivers. Confirm that you have the latest driver installed. Some operating systems also provide drivers, so make sure you have the latest available software patch as well.

Power management
Most computers have some form of sleep mode connected with the screensaver. A controller is not harmed when an energy setting kicks and eliminates its power. However, the OS may fail to power up the controller again. You can eliminate this error by opening Power Options and disabling System Standby.

In Windows 2000, access the Power Options applet by clicking Start, Settings, Control Panel, Power Options.

In Windows XP, go to Start, Control Panel, Power Options. You’ll find the System Standby option on the Power Schemes tab, which opens by default.

For laptop computers, you shouldn’t disable the power management permanently. If the manufacturer doesn’t have a patch for the laptop, consider switching to non-USB devices when possible. You could also create two profiles for users: a portable profile with power management enabled and a desktop profile with power management disabled.

Excessive loads on the bus can also cause power problems. The USB controller can power USB devices. Small devices like your mouse and keyboard aren’t a significant drain, but larger devices, such as scanners, hard drives, web cams, and speakers can draw considerable power. You might be able to eliminate the problem by spreading the power-hungry devices across multiple root hubs. Otherwise, acquire a good self-powered external USB hub.

Inexpensive external hubs sometimes fail to meet the USB power specifications and subsequently cause all devices on the hub to fail. Upgrading to a USB hub that supplies more power solves this kind of problem.

USB device drivers
The ability to hot-swap USB devices is a great feature, but it relies on a somewhat oversimplified set of all-purpose drivers. Some devices may appear to be general-purpose devices when in fact they are not. You need to install the drivers before you connect the device to the PC. Sometimes you need to reboot to give the new drivers priority over the all-purpose drivers. Skipping the reboot will break the whole process.

If you think the new drivers aren’t receiving priority, completely uninstall the device in question. You may have to leave the device connected to uninstall it properly. At other times you may be able to remove a device’s drivers using Control Panel’s Add/Remove Programs applet, just as you would with other software.

Sometimes it’s necessary to upgrade a device’s firmware, which is basically a driver that runs on the peripheral. The more advanced the device, the more likely it is that the firmware can be upgraded. Your mouse probably doesn’t have any firmware upgrades. Scanners, hard disks, printers, optical disks, and other sophisticated peripherals likely have upgradeable firmware. Check the manufacturer’s site to make sure that you have the most recent update.

Bandwidth
USB root hubs can each support up to 128 devices, but they can run out of bandwidth, depending on consumption rates. USB 1.1 is limited to 12 Mbps, not counting the bus management overhead. USB 2.0 has 480 Mbps with about 420 Mbpsavailable, so it can support more devices. Combine an Ethernet adapter, a printer, and an external CD-ROM or hard drive on a single USB controller, though, and the PC can quickly exhaust its capacity.

The only solution for bandwidth problems is to either stop using all the devices simultaneously or distribute the load. Make sure you put devices that will always see use, like Ethernet adapters and USB speakers, on different root hubs. You may need to get additional USB controllers, which are inexpensive, typically costing less than $40.

Q. Help, my CD drive or DVD drive is missing?

A. I am taking this to mean your CD/DVD drive is not recognized, so you can’t play a CD or DVD.

You probably have either corrupted or deleted Windows registry entries. To solve this problem, you need to use the Registry Editor. ***Note: By using Registry Editor, you are modifying the registry. Serious problems might occur if you modify the registry incorrectly. Make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. For more information about how to back up and restore the registry, click here to read the article in the Microsoft Knowledge Base.

1. Click Start, and then click Run.
2. In the Open box, type regedit, and then click OK.
3. In the navigation pane, locate and then click the following registry subkey:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
4. In the right pane, click UpperFilters.
   *** Note – You may also see an UpperFilters.bak registry entry. You do not have to remove that entry. Click UpperFilters only. If you do not see the UpperFilters registry entry, you still might have to remove the LowerFilters registry entry. To do this, go to step 7.
5. On the Edit menu, click Delete.
6. When you are prompted to confirm the deletion, click Yes.
7. In the right pane, click LowerFilters.
   *** Note – If you do not see the LowerFilters registry entry, unfortunately this content cannot help you any further. Try contacting Microsoft for additional support.
8. On the Edit menu, click Delete.
9. When you are prompted to confirm the deletion, click Yes.
10. Exit Registry Editor.
11. Restart the computer.
12. Click Start, click My Computer, and then see whether the drive is listed.

If you still can’t play or access a CD or DVD at this point, next try to reinstall the programs. If that doesn’t work, check to see if there are updates available at the manufacturer’s website. Some examples of programs that might be affected are:

• iTunes software by Apple
• Nero software by Nero Inc
• Roxio Creator software by Sonic Solutions
• Zune software by Microsoft

Additionally, you  can try to remove and reinstall the device drivers.

Do the following to remove and reinstall the device drivers:

1. Click Start, and then click Control Panel.
2. Click System and Maintenance, and then click System,
3. On the Hardware tab, click Device Manager. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
4. In Device Manager, expand DVD/CD-ROM drives, right-click the CD and DVD devices, and then click Uninstall.
5. When you are prompted to confirm that you want to remove the device, click OK.
6. Restart the computer.

After the computer restarts, the drivers should be automatically installed.

Vga.dll errors are caused by when the vga.dll file is either removed or corrupted. It could indicate a registry problem, a virus or malware, or sometimes a hardware failure.

How to solve Vga.dll errors:

*If you can’t start Windows normally, use the Safe Mode.

• Check your Recycle Bin to see if vga.dll is there. If you see it there, you probably accidentally deleted it. You can restore it from here. (If you emptied your Recycle Bin you and you know you deleted the file, you can try running a file recovery program to restore it.)
• Run a virus scan on your computer to see if you are affected by a virus or malware. vga.dll file errors can be caused by a virus. The file might still be on your machine, but is masked.
• If running a certain program causes the error message, try to reinstall that program.
• If you get the error message when you are using a hardware device, try updating the drivers.
• If the error message started showing up after updating drivers, you might try rolling them back.
• Run the System File Checker.
• Install any available Windows Updates. Many service packs and patches actually replace or update your .dll files.
• Test your memory and your hard drive. You might need to replace one or the other.
• Use a free registry cleaner to repair your .dll files
• As a last resort, if none of the above tips work, you might consider doing a clean installation of Windows. Keep in mind that your hard drive will be wiped clean. Make sure you have everything backed up and know how to reinstall everything you need. If you see the error message after doing this, you can be certain that the problem is hardware related.

STOP error 0xB4 means that Windows was unable to enter graphics mode. Your video driver failed to initialize. This happens because of a conflict with the computer’s parallel port and your video card, if the parallel port I/O address is set to 03BC.

To fix this problem you need to change the parallel port I/O address from 03BC to 0378

1. Restart your machine, and press F8 at the Starting Windows screen.
2. Select Safe Mode, and then press ENTER
3. Log on to your using the local administrator account.
4. Click Start, Settings, and then click Control Panel.
5. Double-click System.
6. Click the Hardware tab, and then click Device Manager.
7. Click the plus “+” next to ports to expand the ports list.
8. Select the printer port LPT1, and on the Action menu, click Properties.
9. Click the Resources tab, and then clear the Use Automatic Settings check box .
10. In the Settings Based On drop down menu, select a setting that uses an I/O address of 0378 instead of 03BC.
11. Click OK, and then close Device Manager.