If you encounter the PAGE FAULT IN NONPAGED AREA (WdFilter.sys) Blue Screen error when you boot your Windows 11/10 device, then this post is intended to help you. In this post, we will provide the most suitable solutions you can try to successfully resolve this issue.
This Stop message occurs when requested data is not found in memory. The system generates a fault, which normally indicates that the system looks for data in the paging file.
WdFilter.sys is a system file developed by Microsoft related to the Windows Defender Mini-Filter Driver. This error occurs in the system due to the corrupt display driver.
Fix PAGE FAULT IN NONPAGED AREA (WdFilter.sys) BSOD
If you’re faced with this issue, you can try our recommended solutions below in no particular order and see if that helps to resolve the issue.
- Run Driver Verifier
- Update Windows Defender
- Test your Memory
- Restore the default Startup Configuration for Windows Defender Mini-Filter Driver
- Run an SFC scan.
Let’s take a look at the description of the process involved concerning each of the listed solutions.
If you can log in normally, good; else you will have to boot into Safe Mode, enter the Advanced Startup options screen, or use the Installation Media to boot to be able to carry out these instructions.
1] Run Driver Verifier
This solution requires you to run Driver Verifier on your Windows 10 device. You will get a message about the status of each driver – follow the onscreen instructions to fix the problem.
You may be required to update your graphics driver.
2] Update Windows Defender
To update Windows Defender, do the following:
- Press Windows key + R to invoke the Run dialog.
- In the Run dialog box, type cmd and hit Enter to open Command Prompt.
- In the command prompt window, copy and paste the command below and hit Enter.
cd /d "\Program Files\Windows Defender" mpcmdrun.exe -signatureupdate
After the definition update completes, see if the issue is resolved. If not, try the next solution.
3] Test your Memory
To fix this, you will have to run the Memory Check on your computer. Start by hitting the WINKEY + R button combination to launch the Run utility. Then type in, mdsched.exe and then hit Enter. It will not launch the Windows Memory Diagnostic Tool and will give out two options-
- Restart now and check for problems (Recommended)
- Check for problems the next time I start my computer
Now, according to the option selected by you, the computer will restart and check for memory-based problems. If you get any issues there, it will fix it automatically else if no issues are detected, this is probably not the cause of the issue.
4] Restore the default Startup Configuration for Windows Defender Mini-Filter Driver
Do the following:
- Press Windows key + R to invoke the Run dialog.
- In the Run dialog box, type cmd and then press CTRL + SHIFT + ENTER to open Command Prompt in admin mode.
- In the command prompt window, type the command below and hit Enter after each line:
sc config WdFilter start= boot sc start WdFilter
After the command executes, exit the CMD window and restart your device and see if the issue is resolved.
5] Run SFC scan
If you have system file errors, you may encounter the error.
The System File Checker is a native utility in Windows that allows users to scan for corruptions in Windows system files and restore corrupted files.
This solution requires you to run an SFC scan and see if that helps.
I hope something here helps you.
Related BSOD: Fix PAGE_FAULT_IN_NONPAGED_AREA 0x00000050 error.
What is Page Fault in Nonpaged Area after changing RAM?
A ‘Page Fault in Nonpaged Area’ error after changing RAM typically indicates a memory-related issue. Ensure the RAM is correctly installed and compatible with your system. Clean any dust from the slots and check for damage on the new module. If the problem persists, run a memory diagnostic test to confirm the integrity of your RAM.
