I have a Lenovo Yoga 2, and the Windows Audio is not enabled. I have tried enabling it, but it gives me an error code 0x800706cc. I don't think it has anything to do with AVG. I don't know what else to do...
It looks like AVG might be the problem
Check out the link and see if this matches the error you are getting. I fso, AVG may be quarantining files that it shouldn't.