Just bought Avast Premium but it causes my pc to crash after an hour or two. Nothing in the logs says something is failing. Is there anyway to get a refund?
Did you remove the existing antivirus before installing Avast? Do you have any other security software installed?
Request a refund- https://www.avast.com/faq.php?article=AVKB24#idt_0430
Links to instructions/tools to remove av’s > http://www.ache.nl
How to Successfully Install Avast http://goo.gl/VLXde