I don’t think that is entirely correct. I flew for an entire week with no issues. Then I installed KB5005033, and I had two flights after that, and both ended with a CTD. Before the patch was installed, I had flown a couple of test flights around San Francisco with no issues either, it only happened after the reboot.
Now I was flying in completely different areas in those three sessions, so the patch my likely have nothing to do with it. The flights with crashes were taking off from Courchevel, heading to Meribel. Curiously both crashes happened as I entered its vicinity. The first was taking a shortcut over the mountains, and I was about a mile out, and several thousand feet above it. The second time I took the usual route, turning left, then right down that long descending valley, then turning right to line up with runway 2. Just as I touched down, or within a second or two, it crashed.
Meribel doesn’t care that I have an EVGA 1600W Platinum PSU. It’s too much coincidence that I had the issue in the same location. This may be one of those cases where I have to clear out my scenery cache. Before I do that though, tonight I will try spawning there instead.
I had a similar issue to this a while back when WU5 came out. I couldn’t complete the landing challenge at the time as I my sim would crash just before I spawned in. Similarly, flying in from the East about 10 miles away, when I got near that airport the sim crashed. I then tried a different approach, over the sea from the West. For some reason that worked, and I was even able to land there. I could then load the landing challenge! That seemed like something had got updated or deleted, and that’s kind of what it seemed like last night.
So in conclusion, error 0xc0000005 is absolutely tied to MSFS as I don’t have a single other piece of software installed that does this.
You could make the argument that it something else, like Motherboard, Memory or Processor. Well over a week ago I swapped all those components out as part of an upgrade, and was flying fine until those two flights last night. Buying another pair of fault memory modules would be extremely unlucky.
It’s not overheating either as I use a watercooler, for the CPU at least, and the highest I’ve seen it get to is about 57C. The GPU, a 3090 FE, usually peaks around 47-50 IIRC.