REGISTRY FILTER DRIVER EXCEPTION (WdFilter.sys) Blue Screen error in Windows

If you have encountered the REGISTRY FILTER DRIVER EXCEPTION (WdFilter.sys) Blue Screen error on your Windows 11/10 device, you’re at the right place! In this post, we will present the solutions you can try to successfully resolve this issue.

REGISTRY_FILTER_DRIVER_EXCEPTION bug check has a value of 0x00000135. This bugcheck is caused by an unhandled exception in a registry filtering driver. This bugcheck indicates that a registry filtering driver didn’t handle an exception inside its notification routine.

What is WdFilter.sys?

WdFilter.sys is a Windows system file related to the Windows Defender Mini-Filter Driver.

Fix REGISTRY_FILTER_DRIVER_EXCEPTION (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.

1. Run the Blue Screen Troubleshooter
2. Update drivers
3. Run CHKDSK
4. Unplug any external USB peripherals/devices
5. Run SFC scan
6. Run DISM scan
7. Perform System Restore

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 the Blue Screen Troubleshooter

The first line of action is to run the Blue Screen Troubleshooter and see if that helps to fix the Blue Screen error.

2] Update drivers

Faulty or outdated drivers may trigger this error as well.

Since WdFilter.sys is a Microsoft Defender file, it is best to get the driver updates on the Optional Updates section under Windows Update.

3] Run CHKDSK

Using CHKDSK is also one solution that is proved to be effective to fix this Blue Screen error.

To run CHKDSK, 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/elevated mode.
• In the command prompt window, type the command below and hit Enter.

chkdsk /x /f /r

You will receive the following message:

Chkdsk cannot run because the volume is in use by another process. Would you like to schedule this volume to be checked the next time the system restarts? (Y/N).

• Press the Y key on the keyboard and then reboot your computer to let CHKDSK to check and fix the errors on the computer hard drive.

After CHKDSK completes, check to see if the issue is resolved.

4] Run SFC scan

System files and DLL components sometimes go missing or get corrupted in the Windows OS and consequently give rise to some blue screen errors. In this case, you can run SFC scan and see if that helps.

5] Run DISM scan

Deployment Image Servicing and Management (DISM) is a powerful utility in fixing problematic Windows image files. Since corruption in these files is known to cause blue screen errors, you can run DISM scan and see if that helps.

6] Unplug any external USB peripherals/devices

Sometimes, the stop error might appear due to additional secondary peripheral devices. To fix this issue, unplug these devices and restart your Windows 10 computer. If the PC boots successfully, you can plug back the devices one by one. Then, open a browser, visit the respective device manufacturer’s website, and make sure the drivers are up to date.

7] Perform System Restore

If you noticed that the error started to occur recently, it’s entirely possible that a recent change in your system facilitated the issue.

At this point, if none of the above solutions worked for you, you can restore your system to an earlier point. This will restore your system to an earlier point when the system was working correctly.

I hope this helps!

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