I had my PC on and after a power shortage, Windows 7 lost all it's sounds. The speakers work fine, I can play music, movies, games and everything, it's just the Windows sounds that are out for some reason (folder clicking, logging in/out, clicks, etc).
If I go to Personalize -> Change Sounds, no sound is played if I click on any sound there, no matter the theme.
The speakers on Windows configuration are working fine (they pass the test and such).
I tried troubleshooting already, nothing found.
I had this happen once a very long time ago, but I don't remember the solution (if there was one). Other than uninstalling, what can I do to solve this?