A while back I was having a little problem with my antivirus interface. The only way i could view it was in "Maximized" mode. Then I ran "System File Checker" at a later time for an unrelated issue. After that my a/v interface was fixed and my watermark was back. I have no clue as to whether the watermark and a/v issue were related or not. I guess it's possible. I haven't tried to remove it again to find out though. I don't mind the watermark being there. I just thought I'd throw that out there for something to think about.