On a terinal or remote dekstop server there are various applications that yuo will not want a remote desktop user to run, regedit is one of them Here is how to stop a standard user from running regedit in terminal services.
A step by step guide on how to add a user to be a Exchange 2013 administrator. How to add users to Exchange 2013 managment roles. A full list of Exchange 2013 roles.This guide also applies to adding an administrator to Office 365 Exchange
.If you need to find out how long ago it has been since a user has logged onto your network then you can do this with a command in powershell. Follow this guide.Find out how long it has been since a user logged in.