I am running Aces High on Windows 8.1 Pro, Tracerfi, the only problem I have ran into was trying to copy and paste my settings folder over for my CH HOTAS ( fighterstick, pro throttle, pedals ).... I tried to copy and paste it over from 7 different back ups.......... all my plane settings ( head views, convergence, etc ) took, but none of my CH HOTAS settings would take..... I ended up having to go in and manually set up each device, as if it was the first time being installed.......
outside of that, I've had no other issues
hope this helps
TC