Convert MAK licensed Windows system back to KMS

The back and forth Windows licensing from KMS to MAK can be so frustrating.  Today I had to take a system that had been KMS and then made MAK back to KMS again.  Of course this process involves searching for a variety of various scripts to run but you have to put a KMS key in even if you’re going to network provided KMS.  Apparently Microsoft makes available default KMS keys you can put in to swap back.

https://docs.microsoft.com/en-us/windows-server/get-started/kmsclientkeys

  1. Find your key from the website for the version you’re working with
  2. Start a CMD Command Prompt as an admin
  3. cscript slmgr.vbs /ipk KeyFromWebsiteAbove
  4. cscript slmgr.vbs /ato

The Windows interface updated to show my system was now activated again without having to close it.

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