Werfault.exe Application Error [A Complete Guide]

Part 1: What is Werfault.exe Application Error?

Werfault.exe is the Windows error reporting executable. Some people ask what is Werfault.exe used for? Actually, it's used for logging and transmitting error details, which helps Microsoft identify bugs and improve system stability.

Generally, the Werfault.exe application error is a Windows issue when Werfault.exe was unable to start correctly. As a result, you may see repeated pop-ups like “Werfault.exe Application Error”.

Part 2: How to Fix Specific Werfault.exe Application Errors?

Whether you're facing specific codes like 0xc000012d or 0xc0000142, we’ll walk you through step-by-step solutions to fix these errors, ensuring your system runs smoothly again.

1.Werfault.exe 0xc000012d

This error often relates to memory or resource handling issues, proablely caused by corrupted or missing system files, bad sectors on the disk or outdated or faulty drivers and so on. Here are the methods:

Fix 1: Run System File Checker (SFC)

• Press Win + S and type cmd. In the results, right-click Command Prompt → select “Run as administrator”.

  

• Then type “sfc /scannow” and press “Enter” and wait. The scan may take 10–15 minutes.

  

If SFC finds corrupted files, it will automatically replace them. After completion, restart your PC to check if the Werfault.exe error is resolved.

Fix 2 Check Disk for Errors

• Press “Win + S”, type cmd, and run as administrator. Then, enter the following command: chkdsk C: /f /r

  (Replace C: with the drive where Windows is installed).

• If promped, type Y and press Enter. Then restart your PC, windows will automatically scan and repair disk errors before loading.

Fix 3: Update System Drivers

• Press Win + X and select Device Manager.

• Expand the categories (e.g., Display adapters, Sound, video, and game controllers) to find the device with outdated drivers.

  

• Right-click the device and choose Update driver.

Fix 4: Check RAM and Storage

• Press Win + R, type “mdsched.exe”, press Enter.

• Choose “Restart now and check for problems”. And then, Windows Memory Diagnostic will run at reboot and test your RAM.

  

If errors are found, consider replacing faulty RAM.

Bonus: How to Backup Disk or Partition before Repairing Werfault.exe Application Error?

Before fixing the Werfault.exe application error, it’s smart to back up your disk or partition to protect your data. Using 4DDiG Partition Manager makes this process easy, offering quick and reliable disk backups, safe partition cloning, and an intuitive interface, ensuring your files are protected during repairs.

• Lauch 4DDiG Partition Manager and navigate to Backup. Click Disk/Partition Backup.

  

• Select the partitions or disk you want to backup, click Next.

  

• Confirm the source partitions or disk and the storage path, if it not the one you want, click "Change". And click Start. Then just wait patiently.

  

• Later, the backup will be completed, click OK to finish.

  

2.Werfault.exe 0xc0000142

This code indicates an application initialization failure. It may caused by damaged or incomplete application installation, conflicting system updates or corrupted DLL/system files.

Fix 1: Reinstall the Application

To resolve issues caused by a problematic program, you should:

• press Win + I, go to Apps, and find the app causing the issue, and uninstall it.

  

• Afterward, reinstall the program either from the official website or the Microsoft Store.

Fix 2: Run the Application as Administrator

• Right-click the app’s shortcut and choose “Run as administrator”.

• If it doesn’t works, right-click again → Properties → Compatibility tab → check Run this program as an administrator → Apply.

  

Fix 3: Check for Windows Updates

• To check for updates, press “Win + I” to open Settings, then navigate to Windows Update .

• Click “Check for updates”, and Windows will search for any available updates.

  

Then, you need to install all pending updates and restart your PC.

More FAQs about Werfault.exe Application Error

Because it's processing error logs from frequently crashing apps or system. This happens when multiple errors occur in a short period, causing Werfault.exe to work overtime collecting and sending crash data.

Open Services.msc, find Windows Error Reporting Service, and set Startup type to Disabled.

Run SFC, update drivers, and check for malware. If the problem persists, consider disabling the service temporarily.

Conclusion

The Werfault.exe application error can be frustrating. For Werfault.exe 0xc000012d and 0xc0000142, targeted solutions like reinstalling apps or checking hardware can help.

Finally, never forget data protection. Before experimenting with fixes, back up your disks using 4DDiG Partition Manager. With your data secured, troubleshooting Werfault.exe becomes less stressful and much safer.