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 /AcceptEulaWhat 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
- Restart required – The server will need a reboot to complete the change
- Downgrade only – You can go from Datacenter → Standard, but not the reverse
- Activation – After switching, you'll need to activate against your KMS server or use a retail/MAK key
- 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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