two in the last 30 min before your post, but that was after almost 6 hours of playing, running roulettes, porting around, ect. on one char. (not sure it matters, but the more information, maybe the more chance someone figures out whats happening and gets this resolved)

I logged out without closing the game to switch chars, qued for alliance roullete and got Royal city of Rabanastre, and thats when I crashed to desktop with no error message showing
so logged back in to my main, used the in town aethernet, and about 3 min after that, got the nvgpucomp64.dll error window thats polite enough to not close the game till i hit "ok"
so now, since the older nvidia drivers didnt seem to help, im updated those back to current. Then I ran DISM again just to see if that corruption was related to those drivers, that came back negative
but when I started FF14, I got 3 error windows before my system blue screened with that "driver irql not less or equal"
and now trying starting FF14 have 6 error windows rapidly pop up then close before the SquareEnix logo even shows.

its to the point Id be better off buying the console version and a usb hub and playing that way since they at least believed there was a problem and fixed it there or just giving up and waiting a patch or two in the hopes they inadvertently fix it