CTDs are back

I have re-installed windows and MSFS2020. I also replaced my PSU with an RM750 to eliminate that as a potential issue.

Did a test flight in Safe Mode with only the keyboard for 15 minutes then CTD. The fault is a different one which appears to be related to Windows. Any ideas on how to troubleshoot?

Faulting application name: FlightSimulator.exe, version: 1.24.5.0, time stamp: 0x00000000
Faulting module name: ntdll.dll, version: 10.0.22000.527, time stamp: 0x931cda92
Exception code: 0xc0000409
Fault offset: 0x000000000009326f
Faulting process id: 0x1668
Faulting application start time: 0x01d8483ddfd47439
Faulting application path: C:\Program Files\WindowsApps\Microsoft.FlightSimulator_1.24.5.0_x64__8wekyb3d8bbwe\FlightSimulator.exe
Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll
Report Id: f971d6c4-d524-4713-acc8-6f5c3c7ed914
Faulting package full name: Microsoft.FlightSimulator_1.24.5.0_x64__8wekyb3d8bbwe
Faulting package-relative application ID: App