I received the same error today but found that the OVRService was
stopped in task manager. I started it and was able to open Oculus just
fine after that. I then ran into an issue with Malwarebytes preventing
an update, so I exited out of that. Both o...
I am having the same issue.Windows 10 Fall Creator's update is
installed, Guardian is enabled (although sometimes it states that it has
to be turned off due to an error, usually right before the screen goes
black.) Using Rift 2.0 Core. Version 390.77...