Fix PAGE_FAULT_IN_NONPAGED_AREA (0x00000050) Error

Symptoms

When the PAGE_FAULT_IN_NONPAGED_AREA error (stop code 0x00000050) occurs, Windows crashes with a blue screen. Common symptoms include:

• Sudden system freeze followed by a blue screen with the error code 0x00000050.
• System restarts unexpectedly, often during boot or while running memory-intensive applications.
• Error may appear after installing new hardware, drivers, or Windows updates.
• In some cases, the error occurs randomly without a clear trigger.

Root Causes

The error indicates that the system attempted to access a page of memory that was not present in the nonpaged area (memory that cannot be written to disk). Common causes include:

• Faulty RAM or memory module issues – Physical defects or improper seating.
• Corrupt or incompatible device drivers – Especially graphics, network, or storage drivers.
• Corrupt system files – Damaged Windows core files.
• Disk errors – Bad sectors or file system corruption.
• Antivirus software conflicts – Some security programs interfere with memory management.
• Outdated BIOS or firmware – Incompatibility with hardware.

Step-by-Step Fix

1. Run Windows Memory Diagnostic

1. Press Win + R, type mdsched.exe, and press Enter.
2. Choose Restart now and check for problems.
3. Windows will reboot and run the memory test. Wait for completion (may take 30+ minutes).
4. After reboot, check results in Event Viewer under Windows Logs > System (source: MemoryDiagnostics-Results).

2. Check Disk for Errors

1. Open Command Prompt as Administrator.
2. Run: chkdsk C: /f /r (replace C: with your system drive).
3. Type Y to schedule scan on next reboot, then restart your PC.
4. Let CHKDSK complete the scan and repair process.

3. Run System File Checker (SFC) and DISM

1. Open Command Prompt as Administrator.
2. Run: sfc /scannow and wait for completion.
3. Then run: DISM /Online /Cleanup-Image /RestoreHealth.
4. Restart your PC after both commands finish.

4. Update or Roll Back Drivers

1. Press Win + X and select Device Manager.
2. Expand categories (especially Display adapters, Network adapters, Storage controllers).
3. Right-click each device and select Update driver > Search automatically.
4. If error started after a driver update, roll back: Right-click > Properties > Driver > Roll Back Driver.

5. Uninstall Recently Installed Software or Updates

1. Go to Settings > Update & Security > Windows Update > View update history > Uninstall updates.
2. Remove any recent updates that coincide with the error.
3. Also uninstall any recently added software, especially antivirus or system utilities.

6. Test Hardware

• Reseat RAM modules: Power off, remove and reinsert sticks, ensure they click in place.
• Test with one RAM stick at a time to isolate faulty module.
• Check for overheating: Clean dust from fans and heatsinks.

Alternative Fixes

• Disable driver verifier (if enabled): Open Command Prompt as Admin and run verifier /reset, then reboot.
• Boot into Safe Mode: If the error occurs during boot, repeatedly press F8 at startup and select Safe Mode with Networking. Then perform driver rollback or uninstall.
• Use System Restore: Boot into Advanced Startup (via recovery drive or F8) and choose System Restore to revert to a previous state.
• Update BIOS/UEFI: Visit your motherboard manufacturer's website for the latest firmware version.

Prevention

• Keep Windows and all drivers updated regularly.
• Use reliable antivirus software and avoid running multiple security programs simultaneously.
• Perform periodic disk checks and memory tests (e.g., monthly).
• Ensure proper ventilation and cooling to prevent hardware overheating.
• Back up important data frequently to avoid loss from crashes.