Windows Server Evaluation: Convert and activate to fully licensed editions

#Note
Windows Server Evaluation: Convert and activate to fully licensed editions

#Product affected / related
Windows Server 2012 or higher

#Issue 
End user not able to use corporate or OEM serial numbers on Eval. Edition

#Solution
1. You need to establish your exact currently installed version. From a elevated command prompt, run the following command:

DISM /online /Get-CurrentEdition

2. Running the following command with your license key. Delete "Eval"from edition.

DISM /online /Set-Edition:ServerStandard /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula