Well, if you’re running a Server Core (I hope so, for domain controllers, dns, file services and more there’s no good reason to do not so), then it’s an ease to change that. The corresponding setting has to be configured in the registry. Regedit can be opened on Server Core (there are more graphical user interfaces that are shipped with core, for example notepad.exe and timedate.cpl). I’m talking about this key:
Click through for the instructions.