You can view a list of logged on users in the Windows Server 2012 Task Manager. To view logged on users via the Task Manager, do the following:
- Right click the Task bar at the bottom of the screen
- Click Task Manager
- Click More Details, at the bottom of the Task Manager
- Click the Users tab
This gives a list of users who are logged onto the 2012 server, whether they are currently logged on or have logged on and are now disconnected. If a user is logged on, but disconnected from the session, the Task Manager will state that the user is disconnected.
Note that you can no longer remote control a user’s RDP session in Windows Server 2012.