Updating KMS to activate Windows 8.1 and Server 2012 R2 hosts

As many others these days, I’m messing around with Windows 8.1 and was looking into upgrading our KMS to support the new OS.

Here’s what I did:

1) Download and install following update on your KMS host: http://support.microsoft.com/kb/2885698 and reboot the server.

2) Uninstall current KMS key from an elevated command prompt using: slmgr.vbs /upk

3) Install the new Server 2012 R2 KMS key also from an elevated prompt using: slmgr.vbs /ipk NEWKEYGOESHERE

4) Activate the new key running slmgr.vbs /ato

…and voila: our KMS is ready for Windows 8.1 and Server 2012 R2 🙂

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