Pas 1: Deschideți CMD (rulează ca administrator), then you type
dism /online /get-targeteditions
You will see Windows Server 2019 editions you can upgrade
Pas 2: You copy and paste this code in cmd
If you want to upgrade to Windows Server 2019 Standard you type:
DISP /Online /Set-Edition:ServerStandard /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /accepteula
Notă:
Dacă vedeți „upgrade a eșuat”, Reporniți serverul Windows 2019. It will upgrade Windows Server 2019 Evaluation to Stardard.