Convert Windows Server Evaluation to Licensed Version

✅ Correct Command Format

DISM /Online /Set-Edition:<TargetEdition> /ProductKey:<YourProductKey> /AcceptEula

DISM /Online /Set-Edition:ServerStandard /ProductKey:N69G4-B89J2-4G8F4-WWYCC-J464C /AcceptEula

Important Notes:

Make sure the product key matches the target edition.
N69G4-B89J2-4G8F4-WWYCC-J464C is a KMS client key for Windows Server 2019 Standard.
System will require a reboot after running the command.
Use an elevated Command Prompt (Run as Administrator).
You cannot upgrade across major versions using DISM (e.g., 2016 Eval to 2019 Standard).

🧪 Check Current Edition:

DISM /online /Get-CurrentEdition

List Available Target Editions:

DISM /online /Get-TargetEditions