Haven't had this issue, but try to give the Bannerlord folder full access in the security tab, out of curiosity - check your event viewer what it says for the "Application" and "System" tabs. Also, it looks like a defender pop-up, maybe check there as well. Let me know if this doesn't help.
Note that I'm not associated with TaleWorlds, hence you can ignore my suggestions.
Thanks for your reply, first two are from event viewer.
1__
Faulting application name: Radeonsoftware.exe, version: 10.1.2.1996, time stamp: 0x6539ccd8
Faulting module name: ntdll.dll, version: 10.0.19041.3636, time stamp: 0x9b64aa6f
Exception code: 0xc0000409
Fault offset: 0x00000000000bcd86
Faulting process id: 0x26e4
Faulting application start time: 0x01da277ed571ad21
Faulting application path: C:\Program Files\AMD\CNext\CNext\Radeonsoftware.exe
Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll
Report Id: 0a79c20d-6f9e-4378-b950-02883527dec6
Faulting package full name:
Faulting package-relative application ID:
2__
Display driver amduw23g stopped responding and has successfully recovered.
3) I added steam MnB folder, MnB documents folder and MnB programdata folder into exclusions and no luck, still same crash 100% of time.