My USB headset was working yesterday and when i pulled up my computer today my audio worked but my microphone didn't. I have tried every thing but i can't find out what to do. I also have tried another mic on my PC and it worked fine.
There goes the easy answer. <grin>
Have you tried plugging the usb headset into another usb port?
Shutting down the pc and waiting a few minutes before powering it back up?
Try re install drivers. The microphone is faulty then you need a new one. Or its not compatible. Go in control panel check what mic is checked, that should do the trick.