Sound Stops After AVG Update

Alyx, Have a look @ this article (http://avgclick.me/SupportContacts). Sales / Tech Phone & Chat support are available.
AVG Guru

Hi,I work at a school and a lot of the students use AVG Free.  A big problem now occurring, sound suddenly stops working after an AVG Update, I have not found a way to fix this other than a restore which is not always enabled on their devices.  On those devices a re-format has been necessary.  Problem is becoming bigger by the day as more students run their updates.  Please help!!

Alyx, Have a look @ this article (http://avgclick.me/SupportContacts). Sales / Tech Phone & Chat support are available.
AVG Guru