If you, like me, have quickly built a new server or VM using the Evaluation download from Microsoft, you will find that when you get your license (Digitális Kulcs) and try to plug it in, it won’t work. You cannot simply use an otherwise valid (Digitális Kulcs) on an evaluation copy of Windows Server.
But fret not, the solution is quite simple. You merely need to run this command from an elevated command prompt:
DISM /online /Set-Edition: /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula
The Edition ID will be ServerStandard, and then insert your product (Digitális Kulcs). The server will run through the image conversion process, then restart twice.
After the server has restarted, you will need to re-activate the server and enter the (Digitális Kulcs) in again.
It is important to note that if you’ve used an evaluation edition to build a domain controller, you cannot change the edition. You will need to either build a new domain controller, or demote the evaluation edition domain controller, set the version id, and then promote it again.
This (Digitális Kulcs) can activate ONE windows Eszköz, only ONE time. After activation process is done, you will NOT be able to use the same (Digitális Kulcs) again. Formatting the hard drive will effectively erase the (Digitális Kulcs). You can NOT transfer the licence to other computer.