Etap 1: Ou louvri cmd (kouri kòm administratè), then you type
dism /online /get-targeteditions
Etap 2: You copy and paste this code in cmd
If you want to upgrade to Windows Server 2012 R2 Standard ou tape:
dism /online /set-edisyon:serverstandard /productkey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /accepteula
Remak:
si ou wè "upgrade echwe", ou rekòmanse sèvè Windows ou a 2012 R2. It will upgrade Windows Server 2012 R2 Evaluation to Standard.