Pas 1: Obriu cmd (executar com a administrador), 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 Centre de dades que escriviu:
dism /en línia /set-edició:serverdatacenter /productkey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /accepteula
Nota:
si veieu "l'actualització ha fallat", reinicieu el vostre servidor de Windows 2019. It will upgrade Windows Server 2019 Evaluation to Datacenter.
Buy Windows Server 2019 Clau de producte del centre de dades