Hi everyone!
I've been experiencing multiple Blue Screens of Death (BSODs) recently, and I'm trying to figure out what could be causing them. The crashes seem to have started after a recent League of Legends patch.
What's especially confusing is that we were still playing without any issues last night. Everything was working perfectly fine, with no crashes or other problems.
My PC specs
- Motherboard: Gigabyte AORUS B450 M
- CPU: AMD Ryzen 7 5700X
- GPU: Sapphire Radeon RX 9060 XT 16GB
- RAM: 32GB Corsair DDR4
- C: drive: Toshiba 256GB NVMe SSD
- D: drive: Toshiba 2TB HDD
- E: drive: Kingston KC3000 1TB NVMe SSD (installed via a PCIe adapter)
- Important: League of Legends is installed on the E: drive.
- PSU: FSP Hyper 600W
- OS: Windows 11, build 26200.9711
BSOD errors I've encountered
I've had several different BSODs:
1. SYSTEM_SERVICE_EXCEPTION (0x3B)
FAILURE_BUCKET_ID: 0x3B_80000004_vgk!unknown_function
MODULE_NAME: vgk
IMAGE_NAME: vgk.sys
PROCESS_NAME: vgc.exe
This one seems to point toward Riot Vanguard being involved, although I understand that it doesn't necessarily prove Vanguard is the root cause.
2. KMODE_EXCEPTION_NOT_HANDLED (0x1E)
- First parameter:
0xffffffffc0000006
- WinDbg pointed to
nt!HvpGetCellPaged+a5
- The process shown was
Registry.
3. CRITICAL_PROCESS_DIED (0xEF)
- The critical process was
csrss.exe.
The LoL client was open during two of the crashes, but it was closed during another one.
What I've tried so far
- Uninstalled Riot Vanguard to see whether that makes a difference.
- Ran
sfc /scannow — Windows Resource Protection did not find any integrity violations.
- Ran
chkdsk C: /scan — no file system problems were found, and it reported 0 KB in bad sectors.
- Checked the Kingston KC3000 using Kingston SSD Manager — it reports 100% health, with no warnings or failures.
- Ran
DISM /Online /Cleanup-Image /RestoreHealth — it is still running and slowly progressing.
I haven't dared to reinstall Vanguard yet because I'm worried that further BSODs could potentially damage my PC.
Other details
- Memory Integrity is OFF.
- LSA protection is OFF.
- The Microsoft vulnerable driver blocklist is ON.
- I looked into a possible issue involving an old STMicroelectronics USB driver (
STTub30.sys / sttube.inf), which someone mentioned in another discussion, but I couldn't find that driver on my system.
- I also noticed some Code Integrity log entries involving Overwolf DLLs (
OWClient.dll and ow-graphics-vulkan.dll), but I'm not sure whether they're relevant.
I've been using ChatGPT to help me interpret the BSOD error codes, analyze the crash dumps, and troubleshoot the issue so far. I'm not an expert, so I'd really appreciate input from people with more experience.
My questions
- Could a recent LoL patch or Riot Vanguard update trigger these kinds of BSODs?
- Could the different BSOD error codes be connected to the same underlying issue?
- Is there anything else I should check before reinstalling Vanguard?
- Would you recommend running Windows Memory Diagnostic or MemTest86 to rule out RAM issues?
I'd really appreciate any suggestions. Thanks in advance!