Okay please go to your Battlefield 4 game folder under /OriginGames and look out for the file called "config.sys". Delete this file and start Battlefield 4 again. This will reset your whole in-game setup including keybindings. Make sure that you don't press any key on your keyboard while loading the game and if you have setup any kind of macro on your keyboard or mouse, disable it.
Cheers
Basti
So i looked at all the files but there werent a file called config.sys.
In this case I recommend to completely remove your Battlefield 4 game from your computer in order to re-download and install it via Origin. It might be that some data got corrupted and Origin is not able to find and repair those files. Have you ever altered your windows mouse acceleration? You could also try to change the in-game graphic and resolution and check if the issue still exist if you play the game on "low" video-settings.
Cheers
Basti
By the way he turned the graphics to low he downloaded the game again he tried everything he did lowered his mouse accelation so nothing worked and i still got my crashing when launching my bf4 on 64 bit
