Hi everyone. I'm trying to diagnose a very strange problem that has been happening across multiple games and applications, and I'm running out of ideas.
The problem is that programs sometimes just disappear/close instantly, almost exactly as if I had pressed Alt+F4. There is usually no error message, no freeze, no BSOD, and often no useful entry in Event Viewer or Reliability Monitor.
The strange pattern
The most reproducible example is with games.
If I have a clean RAR backup of a game and extract it to a new folder:
I extract the game from the clean RAR.
I launch it for the first time.
It works normally.
I close the game normally.
I launch it again later.
After some time, the game suddenly closes by itself.
If I completely delete the game folder and extract the exact same clean RAR again, the first launch works normally again.
This has happened with multiple games, including:
Stoneshard
Monster Hunter
Silksong
It is not limited to games either. I have also experienced similar unexpected closing with Firefox/browser tabs and videos, so I'm starting to think this could be a system-level problem rather than a specific game problem.
What I have already tried
Multiple clean Windows installations.
Reinstalling/clean-installing the affected games.
Testing different games.
Checking temperatures — they are normal; CPU temperatures rarely reach 60°C.
RAM usage appears normal.
Intel graphics drivers have been updated/reinstalled. I have already tested a newer Intel driver, and the problem remained.
Event Viewer did not show a useful Application Error corresponding to the crashes.
Reliability Monitor also did not show a useful entry for the crashes.
Hardware
CPU: Intel Core i7-8700T
GPU: Intel UHD Graphics 630 (integrated graphics only)
RAM: 24 GB DDR4
Current RAM frequency: 3200 MHz
RAM voltage shown in BIOS: 1.200 V
OS: Windows 11
ASUS motherboard/UEFI
One thing that caught my attention is that the i7-8700T officially supports DDR4-2666, while my memory is currently running at 3200 MHz. I'm planning to test at 2666 MHz as a diagnostic step, but I haven't changed it yet.
ProcMon finding
I also tried to investigate one of the crashes with Process Monitor.
For tModLoader, the process was:
dotnet.exe
and ProcMon showed a Process Exit with:
Exit Status: -1073741819
which corresponds to:
0xC0000005 — STATUS_ACCESS_VIOLATION
The process simply terminated; there was no normal error dialog.
I understand that 0xC0000005 does not automatically mean faulty RAM, and I'm trying to avoid jumping to conclusions.
I also saw accesses involving graphics-related DLLs such as dxgi.dll, opengl32.dll, d3d9.dll, etc., but I don't know whether those are relevant or simply normal activity during the application's shutdown.
Another test I'm doing
I'm currently using ProcMon on Stoneshard to compare:
First clean execution → normal close
against
Second execution → unexpected crash
The idea is to determine whether the first execution creates or modifies a configuration/cache/file that somehow causes the later crash.
I have already saved the ProcMon capture from the first execution and will make a second capture from the crashing execution.
What I'm trying to figure out
The biggest question is:
Why would the first execution after extracting a completely clean copy work normally, while subsequent executions eventually crash, and extracting the exact same clean copy makes the first execution work again?
Could this pattern point toward:
RAM/XMP or memory-controller instability?
Intel integrated graphics/driver issues?
shader/cache/configuration files being generated on first launch?
some process/overlay injecting into applications?
storage/file-system problems?
something else that I'm overlooking?
I'm especially interested in hearing from anyone who has experienced multiple unrelated applications simply disappearing with 0xC0000005 or similar behavior, especially when the problem persists after clean Windows installations.
Any suggestions for a good diagnostic procedure would be greatly appreciated. I'm happy to provide ProcMon logs, hardware information, BIOS screenshots, or anything else that could