The CRITICAL_PROCESS_DIED (0xEF) bug check usually means a vital Windows process unexpectedly terminated, often due to driver issues, system file corruption, or faulty hardware.
To start troubleshooting:
- Run System File Checker
Open Command Prompt (Admin) and run: sfc /scannow
Use the system file checker tool https://support.microsoft.com/en-us/windows/usi...
- Check for corrupted Windows image
Run: DISM /Online /Cleanup-Image /RestoreHealth
Repair windows image with DISM. Click here https://learn.microsoft.com/en-us/windows-hardw...
- Update all drivers, especially storage and chipset drivers. You can use Device Manager or visit the OEM site.
- Perform a Clean Boot to isolate third-party software. Click here https://support.microsoft.com/en-us/topic/how-t...
If BSODs continue after these, upload the minidump files (not full memory dumps) for deeper analysis.