Multi-session Windows 10 EVD behaves as "single session" Windows 10 Enterprise – Nerdio Help Center

Applies to: Nerdio Manager for MSP (NMM)

If a MAK activation key is erroneously applied to a multi-session Windows 10 Enterprise for Virtual Desktop (deployed from Azure Marketplace) the OS will not allow multiple users to connect at the same time. This can be repaired by re-setting to KMS activation with the proper Windows 10 EVD key.

Run the following commands from administrative command prompt:

slmgr /ipk CPWHC-NT2C7-VYW78-DHDB2-PG3GK
slmgr /ckms
slmgr /skms kms.core.windows.net
slmgr /ato

NOTE: These command cannot convert a single-session Windows 10 Enterprise OS to multi-session. This can only be used to repair what originally was a multi-session Windows 10 EVD OS.

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