Krok 1: Otevřete cmd (spustit jako správce), then you type
dism /online /get-targeteditions
You will see Windows Server 2019 editions you can upgrade
Krok 2: You copy and paste this code in cmd
If you want to upgrade to Windows Server 2019 Standardně píšete:
dism /online /set-edice:serverstandard /productkey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /accepteula
Poznámka:
pokud vidíte „upgrade se nezdařil“, restartujete Windows Server 2019. It will upgrade Windows Server 2019 Evaluation to Stardard.