Fix WerFault.exe Application Error on windows 11, 10

Are you facing the WerMgr.exe or WerFault.exe Application Error on your Windows 10 or Windows 11 computer? If yes, then you have come to the right place. In this article, we will discuss the different methods to fix this error on your Windows operating system.

If you encounter the following error, it means that these files are corrupted and need to be fixed:

The instruction at the referenced memory could not read. Click on OK to terminate the program.

What is WerMgr.exe or WerFault.exe?

Before we start, let’s understand what WerMgr.exe or WerFault.exe is. It is a file located in the system32 folder of your Windows operating system and is primarily used for Windows error reporting.

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Fix WerFault.exe / WerMgr.exe Application Error

Now, let’s explore the different methods to fix this error:

1. Run SFC System File Scanner

The first method is to run the SFC System File Scanner. Follow these steps:

1. Search for CMD in the Windows search bar and run it as administrator.

2. Type “sfc /scannow” and hit enter.

sfc scannow
sfc scannow

3. Wait for the scan to complete.

4. Reboot your PC.

For a more detailed guide on SFC Scan, read out guide to SFC, DISM, and DSKCHK Scan.

2. Use Windows Memory Diagnostic Tool

The second method is to use the Windows Memory Diagnostic Tool. Follow these steps:

1. Search for “Windows Memory Diagnostic Tool” in the Windows search box.

search and run windows memory diagnostics
search and run windows memory diagnostics

2. Run the tool by clicking on the search result icon.

3. Click on “Restart now.”

The tool will automatically find and fix any memory-related problems in your Windows operating system.

3. Disable Windows Error Reporting Service

If the above two methods do not work, then you can disable the Windows Error Reporting Service. Follow these steps:

1. Search for Services in the search bar of your Windows PC and open the same from the search results.

2. Locate “Windows Error Reporting Service” from the list and double-click on it.

3. Choose “Startup Type” as “Disabled.”

4. Click on “Stop” to stop the service.

5. Click on “Apply.”

6. Finally, press “OK” and reboot your PC.

To get more details on how to stop Windows services, read our Windows Services Guide.

4. Reinstall Display Drivers

The fourth method is to reinstall display drivers. Follow these steps:

1. Press the Win + R key combination to open the Run command box.

2. Type “devmgmt.msc” and hit enter.

devmgmt.msc run device manager command
devmgmt.msc run device manager command

3. Once the Device Manager opens up, click on “Display Adapters” to expand.

4. Right-click on the display adapter and select Uninstall drivers.

uninstall gpu drivers
uninstall gpu drivers

5. Now, click on the “Action” tab in the top-left corner.

6. Click on “Scan for hardware changes.”

The Device Manager will automatically install the latest missing hardware with the most updated version, which you just recently uninstalled.


In conclusion, the WerMgr.exe or WerFault.exe Application Error can be frustrating to deal with, but with the right methods, it can be fixed on your Windows 10 or Windows 11 computer. The methods we have discussed in this article – running the SFC System File Scanner, using the Windows Memory Diagnostic Tool, disabling the Windows Error Reporting Service, and reinstalling display drivers – have proven to be effective in resolving this error.

We hope that this article has helped you in fixing the WerMgr.exe or WerFault.exe Application Error on your Windows operating system. If you have any other suggestions or methods that have worked for you, feel free to share them in the comments section below.

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Posted by
Bhanu Pratap

Hi! I am Bhanu Pratap, co-founder of Yorker Media Group. A die-heart fan of tech and keeps track of every little happening of the same. When not writing, I usually keep myself busy on YouTube making and exploring new and awesome tech content.

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