Upgraded to Win10 (first mistake). Went to use FSX:SE tonight and it never got past the splash screen. I uninstalled Oculus Runtime 0.6.0.0 and it booted up fine.
Followed other suggestions to install the latest AMD drivers for Win 8.1 (not 10). I did that, and reinstalled Oculus Runtime 0.5.0.1 and Flyinside ver 0.7
Now when I launch FSX:SE with the Oculus turned on, I get the error "Microsoft Flight Simulator has stopped working and needs to close" with the splash screen still in the background. No option. Works fine again if I turn off the rift.
All apps/drivers were installed as admin, in windows 8 compatibility mode.