My config GTX 670 SLI nvidia 361.43. Windows 10 64 bits (upgrade from W7 then W8.1 no fresh install).
It was not really working, I had the message "ms fsx stopped working" each time I was exiting the game. I had the UIautomationCore V16386 then I changed to V18000 but this was not fixing the issue with compatibility mode for W7. Of course I was using fsx with dx10 preview and the recommendation from "gex Nick N" nvidia inspector settings. Then I checked what Steam was advising for W10: compatibility mode for W8 and activating in fsx AntiAliasing (was off before). I did that plus now when I am exiting or want to change something from the bar I switch (alt + enter) to the window mode. With all of that applied so far FSX work even in 3D surround.