Product key code windows 7 proffesional

[johannesmwashekele]

its writing that these copy of windows is not genuine

 

[vrumor]

Buy it. Like everyone else.

 

[rgd1101]

call microsoft

 

[Guest]

If you have a genuine license key, call Microsoft to activate, if you have no licence sticker for windows 7 professional, buy one for your system and licence it.

 

[johnbl]

- Bad key activation and your activation grace period expired
- Windows licensing files have been modified, deleted or removed
- Your product key has been passed around and used until the key has been banned.

try Microsoft genuine advantage diagnostic tool to help isolate the problem:
http://windows.microsoft.com/en-US/windows/help/genuine/submit-request