Langkah 1: Sampeyan mbukak cmd (mbukak minangka administrator), then you type
dism /online /get-targeteditions
You will see Windows Server 2019 editions you can upgrade
Langkah 2: You copy and paste this code in cmd
If you want to upgrade to Windows Server 2019 Standar sampeyan ngetik:
dism /online /set-edition:standar server /productkey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /accepteula
Cathetan:
yen sampeyan ndeleng "upgrade gagal", sampeyan miwiti maneh Windows Server 2019. It will upgrade Windows Server 2019 Evaluation to Stardard.