Stap 1: Jy maak cmd oop (hardloop as administrateur), then you type
dism /online /get-targeteditions
Stap 2: You copy and paste this code in cmd
If you want to upgrade to Windows Server 2012 R2 Standard jy tik:
dism /aanlyn /set-uitgawe:bedienerstandaard /produksleutel:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /accepteula
Let wel:
as jy sien "opgradering misluk", jy herbegin jou Windows Server 2012 R2. It will upgrade Windows Server 2012 R2 Evaluation to Standard.