How "unique" is a Windows Product Key?

Posted by Uwe Raabe on Super User See other posts from Super User or by Uwe Raabe
Published on 2010-04-26T08:28:22Z Indexed on 2010/04/26 8:33 UTC
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Windows

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product-key

I'm wondering if the Windows Product Key used for activating any Windows since XP is unique to this installation.

How do OEM systems and corporate licenses fit into this scheme? Do they use the same product key for several systems or is each one activated with a seperate key?

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