If you need to verify that Windows Computers/Servers are activated against KMS server by manually specified KMS server and port use following PowerShell command:
Determine if KMS server is manually set
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If you need to verify that Windows Computers/Servers are activated against KMS server by manually specified KMS server and port use following PowerShell command:
In case you need to determine what language was Windows OS/Server installed run following script in powershell: