Since getting a new HP laptop with Windows7 Home Premium, I've had one disconcerting issue.
Every day when booting-up, as soon as Avast produces the pop-up box announcing updated definitions, a very loud buzz emits from my laptop. It usually stops after a couple of seconds, but on one occasion, the buzz became indefinite and my Windows freezed. I could only shut down by holding down the power key. When I tried to reboot, Windows refused, siting a registry error. I had to boot in safe mode and restore my system to an earlier point.
Is this a known issue with Windows 7, or with the way HP laptops are configured?
I would like to resolve the problem, as I have always like Avast, but if it persists, I will have to consider ditching it and switching to new security software.