I did exactly that and its working now! I uninstalled the game from steam then went back in appdata and deleted all files marked "Bannerlord" then I reinstalled the game and it worked! Thank you!
When I hit start campaign it gives me "The application faced a problem. We need to collect necessary files to fix this problem..." box.
I have no save files.
This is the crash report ID: 2021-02-18_21.50.14_5a9dc54a5893611c1b43495ee2a5bfa4
I found a thread that showed me...