For some reason, I have this blue star just started to appear on my taskbar that says my Windows is not genuine. It wasn't like that before. How do I get my Windows back to genuine? I remember I have this white disk with some black text on it that I got somewhere where I think it restores my Windows to its original state. I used it once and it restored all my old softwares and removed the new ones. It made everything the same as when I first got my PC. Would that get rid of it? My friend has a blue disk that reinstalls Windows. Would that work. If both work, which would you recommend?