I got the Threat Detected message after I did a full system scan yesterday - when it was finished, not a pop-up, just that for scan result. I was unable to access Show Results. A few weeks ago, I had a problem with numerous "Infection Blocked" messages, which essexboy helped me with on this forum. I just ran a scan and although "Some files could not be scanned" (Cloud) which I always get, no "Threat Detected" came up. I am going to assume that I'm ok, if something happens I will be back for help. I do wish Avast would always say "No Virus Found" (if that is the case( after a scan - just to be clear - sometimes they do, mostly they don't. Thanks again. ~~ Mary