I have a windows 7 but I get a message saying that it is not.

How can I rectify this? I installed this new about July 2010 and this message appeared recently in the last days.

I was advised to run a true diagnostic tool window, and it came with a long message, but said "reason of Notification: 0xC004F200 (non-genuine)" it won't and I have the orginal box and received to prove this - how can I fix this please?

I suggest that you run the tool of Microsoft Genuine Advantage diagnostic and copy and paste the results into a response for further analysis:
http://go.Microsoft.com/fwlink/?LinkId=52012

Tags: Windows

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