Avast scans hang

Hello there,

I am running Avast anti virus, latest version 8, on Windows 8 which is fully patched. I am unable to get a scan to complete as they fail at around 47% complete when the machine just hangs. At that stage it has found no infections and the only way I can regain control is to use the big button and cut the power. There are no messages given in Avast after this and there are no obvious signs of any malware but who knows?

Has anyone any ideas to follow. For what its worth a Malwarebytes scan also hangs during execution as well.

Thank you for your assistance.

Jon

hey and welcome to avast forum. on what file those avast hangs?

it could be a large file so avast needs more time to scan it.

you could try a boot scan with avast and see if that comes up with anything.