Try right clicking on the exe of bf1 and in the compatibility tab tick "disable full screen optimisations", this should make it revert to old behaviour of running in true full screen.This maybe what i was also experiencing but i couldnt put it down to drivers.. only thing i have changed in the last week was Windows creators update..
BF1 in DX11 has halved in average FPS
Mouse feels laggy in windows
dragging screens around windows also feels laggy
Reinstalled windows on Monday and still experiencing similar thing last night... games where just randomly closing with GPU overclocked (Which has run the same overclocks 24/7 for the past 6-7 months) also noticed overlay software like CAM would not load on any game which again was working fine till this all started.
Its either something in windows or game mode.. something defiantly does not feel right
For those having issues with artifacting on boot, try disabling " fast startup" in the power setting section of the Windows control panel.