I am using Lenozo Z580 - O/s. Windows 8 Pro. Of late since a couple of weeks, my system's audio / sound
goes off / silent / dumb all of a sudden, whenever I site of you tube or some other site.
When I restart the system it goes well and comes back to normalcy and audio starts.
I have Avast + Malwarebytes on the system. Run them again n again but could not locate the problem.
Request for your help. Than Q.