The first thing to understand about enabling remote desktop for administrative purposes (i.e. when you don’t require users to connect to your server to access applications) is that it’s really easy to do. Sometimes I see people trying to enable the full Remote Desktop Services (RDS) role in Windows Server, a confusion taken from earlier editions of Windows Server where there was a special remote administration mode for Terminal Services. Note: Installing Remote Desktop Services is not necessary in Windows Server 2012, and enabling remote desktop access for administration is the same process as enabling remote desktop access in Windows 8, except there is an extra entry point to the configuration via Server Manager.
Follow these steps to enable remote desktop access using Server Manager.
By default, the local administrator account (or domain administrator account if the server is a member of an Active Directory domain) has permission to access the server remotely. Optionally, you can also click Select Users… to give other users remote desktop access permission.