Steps to Upgrade Windows Server 2019 or 2022 Evaluation to Standard

via DISM

1. Verify the Current Version:

• Open Command Prompt as Administrator.

• Type the following command and press Enter to check the current edition of your
  DISM /online /Get-CurrentEdition

2. Determine Available Target Editions:

• To see the editions you can upgrade to, run the following command:
  DISM /online /Get-TargetEditions

• Ensure that ServerStandard is listed as a target edition.

3. Set the Product Key:

• Now, you need to change the product key to the one you have (MAK key). To do this, use the following command:
  DISM /online /Set-Edition:ServerStandard /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula

• Replace the XXXXX-XXXXX-XXXXX-XXXXX-XXXXX with your MAK key.

Note: In case you see an error message that the product key can not be validated, you can enter KMS Client Product Key to complete the change of the edition and then to continue with the activation via MAK.

4. Restart the Server:

• After the process completes, restart the server for the changes to take effect.

5. Verify the Upgrade:

• Once the server restarts, you can verify the upgrade by checking the edition again with the following command:
  DISM /online /Get-CurrentEdition

• It should now display ServerStandard.