slmgr.vbs /dlv
slmgr.vbs /ipk your-product-key
slmgr.vbs /ato
How to convert Evaluation to Standard
DISM /online /Get-CurrentEdition
DISM /online /Set-Edition:ServerStandard /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula
DISM /online /Get-CurrentEdition