Windows Server - 2016 Evaluation To Standard
slmgr /skms kms.yourserver.com:1688 slmgr /ato For MAK/Retail Key:
slmgr /dlv Confirm the "Product Type" shows "Retail" or "Volume" (not "Eval") and that licensing is active. windows server 2016 evaluation to standard
If you are using Volume Licensing, use the generic KMS client key first, then activate: slmgr /skms kms