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#331
I had a problem like you with my sound card and here's how I've solved it. First of all I'm talking about ASUS notebook with onboard Realtek HD Audio. The problem was that when I installed the latest driver from Realtek I was getting a pretty bad scratching sound. When I was going through the folders of the computer or doing anything else the sound was getting worse. The same was happening when using headphones, so the problem were not the built-in speakers. Actually downloading the latest drivers from Realtek made things even worse. The sound was way better with the Microsoft driver. So here's what I've done to fix this annoying problem:
1. Go to ASUS Support site (not Realtek!) and download the Audio driver for VISTA!!!
2. After you download it unzip it in an empty folder. DO NOT hit the setup file! If you do it you'll probably get an error message that there are no drivers in this package (which is not true).
3. Go to Device Menager and search for your audio card in "Sound, video and game controllers". Now this is very important! Click properties and see on driver details if the manifacturer (of the driver) is Realtek. If you see somewhere Realtek uninstall it!!! If you are not sure just right-click on the device and uninstall it with marking to uninstall the driver aswell!
4. Reboot your PC.
5. After W7 restarts simply wait to find drivers from Microsoft. You will get a message that your sound device is ready to use. PLay a song and if you're still not satisfied go to the next step.
6. Go to Device Manager again and find again your sound device. Go to properties, driver and hit Update Driver. Now it's very important that you hit manualy update driver! It will ask you where to search for the driver. Navigate to the folder where you have unzipped the driver from ASUS and chose sub-folder Vista or Vista-64 (depending on your OS). Wait until Windows find it and install it.
And that's it! Your audio should work fine now. That's what I did and now I enjoy a flawless sound. :) It is important to follow the steps in the way I've written.