activate windows - on 4 year old PC ?

[v119175]

I have a Gateway PC I bought from BestBuy about 4 years ago. Today I started getting a message that I need to activate windows 7 !!!!! It has been working fine for years ! How am I supposed to activate it ? I have done NO work or modifications to the PC.
Now I know why people switch to Macs !

 

[OldMX]

Click on activate to do it online? If it fails, call MS Support Center and let they deal with the issue.

 

[NoelDP]

Please follow this tutorial and post an MGADiag report - then we can see what the problem is.

http://www.sevenforums.com/windows-updates-activation/234159-windows-genuine-activation-issue-posting-instructions.html

Ignore errors produced when clicking on the Copy button - they simply mean that the tool could not create the backup files for some reason. The data is still copied to the clipboard for pasting to your response.

Please also state the Version and Edition of Windows quoted on your COA sticker (if you have one) on the case of your machine (or inside the battery compartment), but do NOT quote the Key on the sticker!
http://www.microsoft.com/en-us/howtotell/Hardware.aspx