Windows Server 2016 Evaluation To Standard -
DISM /online /Set-Edition:ServerStandard /ProductKey:WC2BQ-8NRM3-FDDYY-2BFGV-KHKQY /AcceptEula Once the command succeeds, reboot:
Execute the conversion command:
If you are using Volume Licensing, use the generic KMS client key first, then activate: windows server 2016 evaluation to standard
Here is the text for converting a Windows Server 2016 Evaluation copy to a full Standard edition. windows server 2016 evaluation to standard