Change Product key in Windows 8/Server 2012

New Windows 8/Server 2012 Operating Systems doesn’t allow you to Change Product key through system properties. Only way is to change the product key is to run PowerShell CMD let.

This is how it shows at system properties. You may activate but not change the key. activating without installing a valid key wont be possible too.

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So simply run PowerShell in privileged (run as admin) mode and type below lines step by step.

  1. slmgr -upk (this uninstalls the current Product Key)

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  1. slmgr -ipk XXXX-XXXX-XXXX-XXXX (replace X’es with your Key – this installs the new Product Key) You will see below message if your key is valid with media.

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  1. Now direct to system properties and click "Activate"

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That’s it and enjoy your Genuine OS..