I have noticed a lot of "virus" detections when I run a rescue disk scan. When I look at the scan results, it lists all kinds of files, but the column with the virus name is empty. Are these false detections? Even though there weren't any virus names, I ONCE made the mistake of telling Avast to remove what it found and the system was unbootable after that, so I've been kind of leery about removing anything ever since.