Sound on my computer doesnt work. It says no active mixers are activated. Only when i play a song in winamp does it start to work.

Anyway i went to Run and ran "msconfig" and found that while the "Windows Audio" wasn't disabled it was actually clicked the problem is that it says that its stopped.

How do i change this and fix my sound problem?

check this thread fo solution
http://www.daniweb.com/forums/thread41509-3.html