I have had this 0xC0000005 CTD for months. Each time, just before the CTD, the audio wavers for a second. The only error in the eventlog is this errorcode, and a warning about a disk that has been removed suddenly, which is probably the result of the CTD rather than the cause.
I filed 2 tickets for it, and received the same standard troubleshooting guide.
After months living with these CTD’s I finally discovered the cause: USB devices.
I had almost giving up on finding the cause. I have filed two tickets about this issue and got the standard troubleshooting guide each time. Those didn’t help. I also tried almost every “fix” in these and other forums and none of them really helped. One of these tips was completely reinstalling MSFS and I did that several weeks ago. At first it looked like it worked, and I posted so in these forums.
I was wrong though, because after a few flights those CTD;s returned.
I left MSFS alone, afraid even to start it up again, until a thread about this issue on Avsim caught my eye. This stimulated me to try again.
I have a specific test route from ESUE to EGPN (low alt IFR) that is guaranteed to give me a CTD, usually before I am halfway the North Sea. It does not matter whether I use AI traffic, community mods, simconnect clients etc. or not. It crashes without these or with these.
This time however I decided to do the entire flight without ANY USB controllers. I only had 1 USB hub, a mouse and a keyboard connected. To take off I made use of the AI pilot, and switched to autopilot enroute.
This time, the flight completed without CTD!
After some testing I have found that it doesn’t make a difference whether I have community addons, or simconnect cliens running, or traffic or Azure ATC. Each test is the same: without USB devices the flight is completed, with (some of) them plugged in, it Crashes To Desktop.
After getting my hopes up with several fixes that appeared to work, but proved not to after a few more flights I tested this more thoroughly. I have flown this in several configurations, but the only change that makes a difference between CTD or not is whether I have UBS devices connected or not.
It could be my X570 chipset, of which AMD has recently acknowled to have USB issues, or it could be MSFS, which also had issues with USB devices. They might be related.
I have a likely cause for my case of 0xC0000005 crashes. I don’t have solution yet though. Perhaps Asobo or Microsoft needs to come with another patch, or AMD. I could sell my motherboard and CPU and go back to Intel. With over 300€ spend in the marketplace already I am too invested in MSFS and besides, when it works, it is a fantastic flight simulator, the best I ever ‘played’, and I have been doing so from the FS 5.0 days.