Friday, January 16, 2026

Switch Windows Server Editions Using DISM; Windows Server Activation


Switch Windows Server Editions via DISM

Sometimes you need to change your Windows Server edition; maybe you installed Datacenter but only have a Standard license, or you're migrating licensing models. Here's how to do it in-place without a full reinstall.

The Command

Open an elevated Command Prompt or PowerShell and run:

DISM /online /Set-Edition:ServerStandard /ProductKey:NP46D-VM77K-WXJD7-93VMT-XQFHM /AcceptEula

What This Does

  • /online – Targets the running OS
  • /Set-Edition:ServerStandard – Switches to Server Standard edition
  • /ProductKey: – The KMS client setup key (GVLK) for Server Standard
  • /AcceptEula – Accepts the license terms automatically

Important Notes

  1. Restart required – The server will need a reboot to complete the change
  2. Downgrade only – You can go from Datacenter → Standard, but not the reverse
  3. Activation – After switching, you'll need to activate against your KMS server or use a retail/MAK key
  4. Backup first – Always have a good backup before edition changes

Finding Other GVLKs

Microsoft publishes KMS client keys for all editions in their official documentation. Search for "KMS client setup keys" on Microsoft Learn.



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