My audio suddenly won't work. I am unable to successfully install my sound card nor will the onboard drivers successfully install. I am often deleting files from the registry (spyware and such) and it is very possible that I may have deleted a file or files that are necessary for the windows audio to work. I don't have my XP cd anymore or I would simply reinstall or repair. I do, however, have available to me any of the files in windows XP via another computer so I am able to replace any needed file. My question is: Which certain missing files could be causing my audio to not work? It asks me for certain files during installation attempts such as "WDMaudio" and "ksuser.dll" etc. and I'll direct it to the file but then after it says "installation complete", I reboot only to find that it didn't install! (And one of the times I believe it did say something about a file in the registry) Anyone familiar with this?