If your server is running an evaluation version of Windows Server Standard or Datacenter edition, you can convert it to an available retail version. Run the following commands in an elevated command prompt or PowerShell session.

 

1.Determine the current edition name by running the following command:

Command code: DISM /online /Get-CurrentEdition 

 

 

2.Verify which editions the current installation can be converted to by running the following command. From the output, make a note of the edition name you want to upgrade to.

Command code: DISM /online /Get-TargetEditions

 

 

3.Run the following command to save the Microsoft Software License Terms for Windows Server, which you can then review. Replace the <target edition> placeholder with the edition name you noted from the previous step.

Command code: DISM /online /Set-Edition:<target edition> /GetEula:C:\license.rtf

 

 

4.Enter the new edition name and corresponding retail product key in the following command. The upgrade process requires you to accept the Microsoft Software License Terms for Windows Server that you saved previously.

Command code:  DISM /online /Set-Edition:<target edition> /ProductKey:<product key> /AcceptEula

 

For Example:

DISM /online /Set-Edition:ServerDatacenter /ProductKey:ABCDE-12345-ABCDE-12345-ABCDE /AcceptEula

 

Finally the product will activate . However if you face any issue contact us live support chat or support ticket .