If for some reason you can’t change the product key of your Server 2008 under the My Computer Windows Activation option:

iWindows Activation

Do the following.

  1. Open the command prompt and change working directory to System32 directory
  2. Type in slmgr.vbs -ckms (this clears and KMS entry you may have)
  3. Type slmgr.vbs -upk (this removes any product key installed)
  4. Type slmgr.vbs -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx (where the x’s is the new product key you want to use )
  5. Type slmgr.vbs -ato (this activates the server)

after doing that, Windows Server 2008 should show up as activated.

28 thoughts on “Change Product Key On Windows Server 2008

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  2. Works great, thanx, but only when logged as the administrator who originate installed the OS. Works not when logged on as a arbitrary domain admin

  3. Pingback: Windows Server 2008: how to switch license of retail version to MAPS and vice-versa? - Admins Goodies

  4. received the message sucessfully acitvated windows but still showing the same product ID in my computer properties and getting not activated message also………


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