I can rdp to a windows 8 pro instance and have done so numerous times in the past to this very machine. Unfortunately today the rdp session launches only a black screen. I have googled and read numerous posts that suggest getting a task manager session to pop up by typing CTRL+ALT+END or any of several variations (CTRL+SHIFT+ALT+END) etc. The screen is completely unresponsive. I thought I might get lucky by passing the command to launch powershell upon connecting and then restart from there but nothing.
Completely stuck on this one. Going over an restarting the computer is not an option. I have also disabled persistent bitmap caching.