How do I activate Window 7 for a different computer?

Posted by Abdullah BaMusa on Super User See other posts from Super User or by Abdullah BaMusa
Published on 2010-04-10T19:02:37Z Indexed on 2010/04/11 3:03 UTC
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windows-7

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activation

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Windows

I bought Windows 7 Professional Retail which I installed on my laptop. Now I've decided to move it to be on my desktop PC, so I uninstalled Windows from my laptop, restoring the original OS came with the laptop (Vista Business), and installed Windows 7 on my desktop PC. The problem is that I cannot activate my copy of Windows 7 on the desktop PC. Every time I try to activate it I get the error message

The product key you typed cannot be used to activate windows on this computer"

and the code of the error is:

Code: 0xc004c008

Description: The activation server determined that the specified product key could not be used.

How can I solve this problem?

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