Critical
Operating Systems
✓ Solution Verified by Community (0+ upvotes)
How to fix error 0x0000007f in Windows 11
Bug Check 0x0000007F: UNEXPECTED_KERNEL_MODE_TRAP — An unexpected kernel-mode trap occurred.
Fix based on community reports and expert analysis. Last verified: 2026-08-12
· How we verify fixes
| Error Code | 0x0000007f |
|---|---|
| Affected System | Windows 11 (Microsoft) |
| Difficulty | Critical |
| Estimated Time | 45 min |
| Requires Admin Rights | ⚠️ Yes |
| Requires Reboot | 🔄 Yes |
Solution Steps
- 1 If you overclocked your CPU or RAM, revert to default settings. Restart your PC and enter BIOS (press Del, F2, or F12). Look for 'Load Optimized Defaults' or 'Reset to Default' and save. This eliminates instability caused by overclocking.
- 2 Run Windows Memory Diagnostic. Press Win+R, type 'mdsched.exe', and press Enter. Choose 'Restart now and check for problems'. This tests your RAM for errors, which is a common cause of this BSOD.
- 3 Check for overheating. Download a temperature monitoring tool like HWMonitor and check your CPU temperature. If it's above 90°C under load, clean your PC's fans and ensure proper ventilation.
- 4 Run 'sfc /scannow' in Command Prompt as administrator (Win+R, type 'cmd', press Ctrl+Shift+Enter). This repairs corrupted system files.
- 5 Update your drivers, especially chipset and CPU drivers. Visit your motherboard manufacturer's website and download the latest drivers.
- 6 If the error persists, use System Restore. Press Win+R, type 'rstrui.exe', and press Enter. Choose a restore point before the error started.
🔍 Didn't work? Enter your GPU and CPU for hardware-specific advice:
🔧 Still having issues?
Describe your exact problem to Error Buddy and get a personalized fix in seconds.
🛠️ Try Error Buddy — It's Free