Hi!
The trainer stopped launching for me. I see the small window appear and the process is gone soon after that from the task manager.
Was working before, like 5 days ago.
Could be related to any security software. Can you check this?
Mmmm windows 8.1 does not seem to have a F1 key on the virtual keyboard.
I tried another trainer for max payne and this one is working fine.
When i start AC black flag without trainer and exit no problems. When i try it with the trainer and after hitting F1 the computer completely freezes when i try to exit the game.
It does you just need to press on the 'FN' button in the bottom left of the keyboard window.