Set Terminal Service session Timeouts/Limits (Windows)
I order to prevent all your terminal service sessions being used and thereby blocking access to a server, tsadmin can be used to log users off remotely or session timeouts / limits can be imposed.
Add the following Registry entries, creating a 1 hour disconnected session limit and a 2 hour idle session limit:
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp] "MaxDisconnectionTime"=dword:0036ee80 "MaxIdleTime"=dword:006ddd00
To add the entries save as whatever.reg and double-click.