It appears as something after this Windows update is causing the game to delete the .exes and many other files. I would recommend using tweaker to restore the lost files, DO NOT delete your entire game. The data files are still good, you will just need .exes and such. The tweaker will check for missing files and restore them no problem.
I'm doing to turn off Windows Defender and see if that is the culprit. But for now it seems like something from this Windows Update wants to delete core files.
yea using tweaker don't work either.. and if you don't totally delete the files before hand tweaker just downloads them again so you end up with two of the same folder taking up even more space on your drive. right now tweaker is downloading 93502 files that will total over 80 gigs once complete... it has been downloading this now for a few hours and that is with a fiber connection. this game is jacked up right now and they need to fix it! and stop telling people to use tweaker! its just as broken right now and to be honest we should not have to use a third party program to play this game! Microsoft needs to fix their stuff!!!