Few weeks ago, I had to un-join and rejoin one of my VM to our domain. Unjoin from the domain, checked. Rejoin to the domain, failed?? I know some of you may feel like " heh? is it that hard? " So no, it is not hard at all, but this was my first time I got below error (no screenshot, I forgot to capture one!) Issues : ERROR : The domain controller does not meet the version requirement for this operation. But before the error prompted, I needed to key in my Domain Admin credential, which (1) I am pretty sure it was correct, and (2) it means my VM was connected to the network, and able to talk to Domain Controller. Troubleshooting :  I tried to join to domain using command line as below :

So yes... After 4 months without new contents, so I started with this. It looks easier to do (well, it is), but before you do that, you may want to read this  to understand the difference between hostname and netBIOS, then starts to explore on when to use them, their limitations etc etc. I won't discuss here (or maybe not today). So let's back to the topic.   Description : Changing NetBIOS Name of A Computer. ComputerName : NetBIOS : How To Do :  Go to Start > Run , and type REGEDIT  Browse to Computer > HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > ComputerName > ComputerName At the right side, double click at ComputerName string, and put correct Value data . Press OK .  Then you will get this Reboot your computer / VM. Once it is up, double check your netBIOS name. New name shall be reflected