Sudden STC or BSOD on MSFS launch, every time. No changes - ay advice?

this is not a .NET update ( January 12, 2021—KB4598242 (OS Builds 19041.746 and 19042.746) - Microsoft Support ). The update error points again to an issue with your system.

More hints related to your system and the BSOD I can’t give… What can I do if your system is bolled proof.

Related to the CTD I’am sure that you have already noticed this thread:

Otherwise there exist also forum-threads about “ucrtbase.dll” and bit older threads about “MicrosoftGeospatialTiles.dll”