Critical
Operating Systems
✓ Solution Verified by Community (0+ upvotes)
How to fix error 0x0000001c in Windows 11
Bug Check 0x0000001C: PFN_REFERENCE_COUNT — The PFN reference count is corrupt.
Fix based on community reports and expert analysis. Last verified: 2026-08-12
· How we verify fixes
| Error Code | 0x0000001c |
|---|---|
| Affected System | Windows 11 (Microsoft) |
| Difficulty | Critical |
| Estimated Time | 90 min |
| Requires Admin Rights | ⚠️ Yes |
| Requires Reboot | 🔄 Yes |
Solution Steps
- 1 Press Windows key + R to open the Run dialog. Type 'mdsched.exe' and press Enter. Choose 'Restart now and check for problems' to run Windows Memory Diagnostic. This will test your RAM for errors. If errors are found, you likely have faulty RAM that needs replacement.
- 2 Press Windows key + X and select 'Device Manager'. Expand 'Display adapters', right-click your graphics card, and select 'Update driver'. Choose 'Search automatically for drivers'. Outdated or corrupt graphics drivers are a common cause of this BSOD. If Windows doesn't find a new driver, visit your GPU manufacturer's website (NVIDIA, AMD, Intel) to download the latest driver.
- 3 Press Windows key + X and select 'Windows Terminal (Admin)' or 'Command Prompt (Admin)'. Type 'sfc /scannow' and press Enter. This scans all protected system files and replaces corrupted ones. Wait for the scan to complete (may take 15-30 minutes). If it finds issues, it will fix them automatically.
- 4 After SFC, run DISM by typing 'DISM /Online /Cleanup-Image /RestoreHealth' and press Enter. This repairs the Windows system image that SFC relies on. It may take up to 30 minutes. This step ensures that system files are fully healthy.
- 5 If the error persists, check for Windows updates: Press Windows key + I to open Settings, go to 'Windows Update', and click 'Check for updates'. Install all pending updates, as they often include fixes for memory management issues.
- 6 If the problem continues, you may need to update your motherboard BIOS. Visit your motherboard manufacturer's website, find your model, and download the latest BIOS update. Follow their instructions carefully, as a failed BIOS update can brick your PC.
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