How to fix Windows not Genuine?

Conor4011

Honorable
Feb 18, 2013
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10,660
A few days ago I was doing some stuff on my computer and I accidentally screwed up some files on my OS drive. I tried to restore to a previous date but its says not enough disk space. Then it starts popping up and telling me my copy of Windows 7 is not genuine. I popped in my Windows 7 Installation Disc 64 bit retail version that I installed on this computer when I built it last year and went through the upgrade/repair option from the disc. After a few hours it came up with this error saying the upgrade didn't work. So I decide to restore my system again after clearing out some space on my OS drive and it works this time. A few days go bye normally and I think the problem is gone and then the window pops up again.

What can I do? The online solutions seem to assume you never have the original OS install disc which I have but I am not sure how I use this to verify my OS.