I am using avast 4.8 professional paid for. All was well then one day I ran a virus scan and thats when I started getting a system restore mal ware warning. tried moving to chest it comes back, found that by doing so my pc will not restore. I believe that this is a false positive and avast will not respond with any support! I'm going to have to find a real virus protection software package. avast isnt it!!!! NO support for their product at all!!!