Start > RUN > services.msc - Scroll down to Windows Audio - Click on it set to automatic and start the service.
It said it was started and automatic, but I clicked on restart anyways. Checked youtube still no audio
I also tried a few other things I read in other posts one was to import missing.reg to the registry and the other was another import youtube.reg that someone talked about in a post I found somewhere out there in the land of searching for a fix. Neither of those worked.