Situatie
The error 0x000000EF in Windows 11 is the CRITICAL_PROCESS_DIED blue screen. It means an essential system process crashed—usually due to corrupted files, bad drivers, or disk issues.
Solutie
If you’re stuck in a restart loop:
- Force shutdown your PC 3 times
- On the 4th boot → Windows Recovery appears
- Go to:
- Troubleshoot → Advanced options → Startup Settings → Restart
- Press 4 for Safe Mode
2. Repair system files
Open Command Prompt (Admin) and run:
Then run:
This fixes corrupted Windows components (a very common cause of this error).
3. Check your disk for errors
Still in Command Prompt:
- Press Y and restart
- This scans for bad sectors or disk corruption
4. Update or reinstall drivers
Faulty drivers (especially GPU/storage) often trigger this.
Update drivers from:
- NVIDIA
- AMD
- Intel
Best practice: uninstall the driver first, then install the latest version.
5. Uninstall recent updates or apps
If the error started recently:
- Go to:
- Settings → Windows Update → Update history → Uninstall updates
- Or remove recently installed software (especially antivirus tools)
6. Check RAM
Bad memory can cause this crash.
- Press
Win + R→ type:
- Restart and scan
7. Disable Fast Startup
- Control Panel → Power Options → Choose what power buttons do
- Turn OFF Fast Startup
8. System Restore
- Go to Recovery → Open System Restore
- Pick a restore point before the issue started
9. Last resort: Reset Windows
- Settings → System → Recovery → Reset this PC
- Choose Keep my files.
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