Hi All I'm seeing this old log entry. I hadn't noticed it previously. 27/02/2012 11:29:29 Startup scanner boot sector active boot sector of the 0. physical disk probably unknown TSR.BOOT virus unable to clean Now I have run many scans since february, and never has this popped up since. I googled around and it seems quite a few user have seen this on the 27th Feb. My question, is this a genuine threat, or is it a false positive? Obviously I value my security, so if is something real is a real therat, I will have to take actions to remedy. Nod32 is updated every day and is fully current. Thanks.