ffxiv crashes pc for unknown reason

[rebeka139]

2) Turn off Fullscreen Optimizations. Find the executable file for the game (normally found in the install folder), right-click it and select 'Properties'. Under the 'Compatibility' tab, check the box labeled 'Disable Fullscreen Optimizations', then click 'Apply'.

So there's 2. "ffxivboot.exe" and "ffxivboot64.exe", and I disabled fullscreen optimizations for both. I'm guessing the 1st one is 32-bit and the 2nd is 64-bit? I may have been using the 32-bit version this entire time by default, but directx11 is on in the game launcher. Going to try using the 64 version for a while.

Edit: there's also ffxivboot.bck and ffxivboot.ver. I assume these are just small settings files related to the .exe's that I should not touch.