You may notice at this time that when trying to open WWindows Defender Firewall with Advanced Security to view the rules, the window would take a very long time to appear and end up in a “Not Responding” state. This appears to happen most when using User Profile Disks (UPD). Searching further, I found this technet forum post in which the cause and solution are discussed.īasically, every time a user logs into the RDS server, a new set of firewall rules is created and are not removed when the users log off, but new ones are re-created when they login again. The system had only 6GB out of 128GB ram used and CPU (8 Cores) were at 2% Trying to run the suggested PowerShell command failed and upon reviewing the AppPackage Log as suggested by the failure error I noticed that the package did not install because of insufficient resources. This led me to think there was an issue with Appx and came across some material that suggested repairing Cortana. When checking the event logs I noticed system events with ID 10001 like the one below

The customer restarted the RDS host but the issue was not resolved. A customer informed us that some users were getting a black screen after logon and others could not open the start menu after they got past the black screen.

Windows terminal server 2016