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Stop code 0x00000050: PAGE_FAULT_IN_NONPAGED_AREA

Updated

Cleared for publishing after the automated checks on .

What the code means

This indicates that invalid system memory has been referenced. (Bug Check 0x50: PAGE_FAULT_IN_NONPAGED_AREA)

Code facts for 0x00000050

Code as Windows shows it0x00000050
TypeStop code (bug check)
Symbolic namePAGE_FAULT_IN_NONPAGED_AREA
Hexadecimal, 8 digits0x00000050
Decimal (unsigned)80
Decimal (signed 32-bit)80
GroupStop codes

Read with care

Code facts: Bug Check 0x50: PAGE_FAULT_IN_NONPAGED_AREA (Microsoft Learn, CC BY 4.0), checked Nov 14, 2026.

Code facts: Bug check code reference (Microsoft Learn, CC BY 4.0), checked Nov 14, 2026.

Where this error shows up

This code shows up on a blue screen, after Windows stops and restarts.

Applies to

Stop-code support page: Windows 11 and Windows 10 (as listed at the top of the Microsoft page). Bug check page: Windows (reference for programmers, no version list).

These steps come from a Microsoft page written for advanced users.

Try these first

These steps carry no risk flag in the data. They keep the order of the full list below, which is not reordered. A step without a flag is not a promise that it is safe for your computer.

6 steps to try, in order

Steps are grouped by the Microsoft page they come from. The page lists only what those pages give; other causes of 0x00000050 are not covered. 3 steps are flagged.

If this page and Microsoft's page differ, follow Microsoft's page.

Microsoft also gives general steps that cover this code: see the general steps in the stop codes group. Each block there says which codes its Microsoft page gives the steps for.

From: Bug Check 0x50: PAGE_FAULT_IN_NONPAGED_AREA

Source: Bug Check 0x50: PAGE_FAULT_IN_NONPAGED_AREA (Microsoft Learn), checked Nov 14, 2026. © Microsoft, licensed under CC BY 4.0. Steps shortened and reworded by PC Driver Update.

From Microsoft's bug check page, which says it is written for programmers. Only its basic, non-debugger troubleshooting lines are used.

  1. Check the System log

    Check the System Log in Event Viewer for other error messages that might help identify the device or driver that is causing the error; look for critical errors from the same time as the blue screen.

  2. Faulty driver

    Examine the name of the driver if it was listed on the blue screen or in the event log, and ask the driver's vendor whether an updated driver is available.

  3. Faulty system service

    Changes services or policyCan lead to a reset or reinstall

    Disable the service and confirm that this resolves the error; if so, ask its maker about an update. If the error occurs during startup, look at the Windows repair options (Recovery options in Windows).

    Microsoft advises: Back up your personal files before you try these fixes. (Back up and restore with Windows Backup)

    Microsoft advises: A reset or reinstall can remove your apps, settings and personal files, and a clean install removes everything on the drive. Back up your important files first, and if BitLocker is on, have your BitLocker recovery key ready. (Recovery options in Windows)

  4. Antivirus software

    Changes security settings

    Disable the antivirus program and confirm that this resolves the error; if it does, ask its maker about an update.

    Microsoft advises: If you remove security software, first make sure you know how to reinstall it and that any product keys are on hand. Windows Defender helps protect the device in the meantime. (Get help with Windows upgrade and installation errors)

  5. Corrupted NTFS volume

    Changes disks

    Run Chkdsk /f /r to detect and repair disk errors. On the system partition the scan starts only after a restart.

    The hard drive's maker may offer diagnostic tools for the drive.

    Microsoft advises: Back up your personal files before you try these fixes. (Back up and restore with Windows Backup)

  6. Test the memory

    Run the Windows Memory Diagnostics tool: select Start, open Control Panel, type Memory in the search box and select Diagnose your computer's memory problems.

    After the test, use Event Viewer to view the results under the System log (the MemoryDiagnostics-Results entry).

Stop and get help

If these steps do not fix the problem, or you are not sure about a step, stop and get help from Microsoft Support or from the maker of your PC. Stop at once if the data on this computer is at risk: back up your files first, or ask a professional before you go on.

Dates and review

Automated checksfirst check: ; fourth check:
Microsoft pages read
  • Troubleshooting Windows unexpected restarts and stop code errors: read , the Microsoft page is dated Jul 28, 2026
  • Bug Check 0x50: PAGE_FAULT_IN_NONPAGED_AREA: read , the Microsoft page is dated Mar 15, 2022
  • Bug check code reference: read , the Microsoft page is dated Jul 15, 2025
  • System Error Codes (0-499): read , the Microsoft page is dated Jul 14, 2025
Review statusCleared for publishing after the automated checks on .