well it's doing it again.
sometimes very rarely the sound won't work or even better I can play songs but I can't control the volume because it says there's no active mixer installed.

and the past two times I've restarted the computer it seems like the theme is trying to catch up it's never done this before I haven't done anything different. I did install 47 windows updates but it was doing it before I installed the updates.

and like I said it only does it seldomly.

what's going on, how can I find out what's causing this?