I've been helping my friend with his Sony Vaio desktop with Windows XP.
The computer was heavily infected with no firewall, or antivirus.
We cleaned everything out, turned Windows firewall on, installed AVG.
All said, and done, there is no sound, which worked before.
This is what we tried:
- uninstall/reinstall on-board sound drivers
- he bought new sound card, we disabled on-board sound, installed new card - at this point, he is able to play music CD, music from flash drive, but there is no system (Windows) sound, nothing will play from inside Windows (including browsers)
- sfc finds nothing
- Windows repair install does nothing
Any other ideas, before going for reformat, reinstall?