June 2 2009

Change Product Key On Windows Server 2008

Open the command prompt and navigate to %windir%System32 directory

slmgr.vbs -cpky (this clears the KMS entry you may have)
slmgr.vbs -upk (this removes any product key installed)
slmgr.vbs -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx (where the x’s are the new product key you want to use)
slmgr.vbs -ato (this activates the server)

Type slmgr.vbs for further options….

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Posted June 2, 2009 by danovich in category "Windows


  1. By Jenish on

    The product Key for Windows Server 2008 R2 is

  2. By ScottDayOh on

    I cannot tell you how big a thanks I owe you.

    I have an MSDN version of Win Server 2008 on two servers (Dev & Test), but they wouldn’t activate. It was suggested to try slmgr.vbs -ipk, but never -cpky!

    They were actually telling me that I must have downloaded Server 2008 from another source and that’s why my key wasn’t working! Geez.

    Thanks a million, danovich!

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