Not a genuine???
About four months ago i put windows 7 64 bit ultimate, that i got from my roommate, on my computer. it has worked great for months and just a few minutes ago i went to my desktop, and my background had changed to black and there is now the words "Windows 7 Build 7600 This Copy of Windows is not genuine." Why did all of a sudden that pop up? is there away to either make it genuine or a way to make the words go away?