Hello to all experts,
I have been experiencing major crashes (CTD - crash to desktop) with Prepar3Dv 4 & 5 in an A320 home cockpit for some time now. I can no longer fly, only make attempts to get the system up and running again.
I am hoping for your ideas and experiences!

Most important points:
•    The system (PC,WIN10,Software) I completely reinstalled it 3 months ago, about 15-20 flights were running normally without any problems. Then came the sudden CTDs. I can fly 2-3 flights normally again in between, then some CTDs again.
•    MSI Pro Z790-P DDR5, i5-13600KF 3,50-5,10 GHz (not OC) watercooled, Nvidia RTX 4070 MSI Ventus 2X 12G OC (SI), Corsair Vengeance DDR5-6000 32MB PC5 -48000U, SSD M.2 NVMe 2TB Samsung 980 Pro, SSD Samsung 2 TB, be quiet Pure Pwr 12M 850W (80 Plus Gold)

Windows-Event-Viewer (all times) :
•    .NET Runtime
•    Frameworkversion: v4.0.30319
•    The process was terminated due to an internal error in the .NET runtime. IP 00007FF84CF4396B (00007FF84CE00000) Exitcode 80131506
•    The process was terminated due to an unhandled exception.
•    Exception-info: code c0000005, adress 00007FFBDA6934F6
•    Faulty modul C:\Windows\SYSTEM32\ntdll.dll
•    Faulty modul C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll

In P3D v4.5 & 5.4 I only use a few airport sceneries, JeeHell A320 and Orbx products. As described above, everything ran without problems for quite some time. The system is sometimes so unstable now, that a click in the P3D menu bar is enough to produce a CTD.

What have I tried :
•    Windows Pwr Shell: sfc /scannow
•    Windows Pwr Shell: dism.exe /online /cleanup-image /restorehealth
•    Win10 update
•    .Net Framework v4.8 installed ... (Win Power Shell tells me, v4.0 is deprecated)
•    GPU Driver update
•    JeeHell A320 update
•    Orbx update
•    Scenery update
•    No AI-Traffic, no S.O.D.E, no GSX

Do you have any ideas or experience on how I can get back a stable flight simulator ?

Thanks

 

Disable all addons in the Addon scenery remove checkmarks, delete the Config file and run the sim in default settings and default aircraft. If it`s still and problem delete P3D reinstall reboot PC try again with default aircraft.