Allow Logon through Terminal Services - Domain Controller.
M ake sure that the Remote Desktop Users group has sufficient permissions to log on through Terminal Services. Click Start, click Run, type secpol.msc, and then click OK. Expand Local Policies, and then click User Rights Assignment. In the right pane, double-click Allow logon through Terminal Services.
The images are not very clear, but I could find the value probably. The mapped-file memory is 7.8G and 7.2 is standby. But in File sumary tab, the largest file is 1.2GB or 3.2GB (not clear).
By default in Windows Server 2016 remote desktop is disabled. Here we cover how to turn on and enable remote desktop protocol (RDP). Note: In Windows Server 2016 Essentials edition, remote desktop is already enabled by default so you will not need to manually do this. Remote desktop can be enabled through the graphical user interface (GUI) with the following easy steps.