WerFault.exe is Windows Error Reporting. It can pop up when an application or Windows component crashes. The code 0xC06D007E commonly shows up when something the app needs to load (often a DLL dependency) is missing, damaged, or not registering correctly after an update, install, or driver change.
Before you start
Restart the PC once. If you can, note whether it happens only with one specific app or at random during sign-in – that helps confirm whether the cause is app-specific or system-wide.
Main fix – use Outbyte
Download and install Outbyte from
https://windowsbulletin.com/werfaultexefix
Run a full scan, apply the recommended repairs, then restart Windows. After reboot, re-test by opening the app or repeating the action that previously triggered the WerFault.exe error.
If the problem started right after a driver update, be conservative with driver changes – prefer drivers from Windows Update or your PC manufacturer.
If it still happens – built-in Windows fixes (in order)
- Repair system files (SFC + DISM): open Command Prompt (Admin) or Windows Terminal (Admin), run sfc /scannow, then run DISM /Online /Cleanup-Image /RestoreHealth, restart, and test again.
- Update Windows fully: Settings → Windows Update → Check for updates, install everything available, restart, and test again.
- Repair or reinstall the crashing app: if the error appears only when launching one app, repair that app first. Example for Office: Settings → Apps → Installed apps → Microsoft 365/Office → Modify → Quick Repair, then Online Repair if needed.
- Check memory and disk health: run Windows Memory Diagnostic, then run chkdsk /scan in an Admin terminal.
- Temporary workaround: disabling Windows Error Reporting can reduce popups, but it does not fix the underlying crash.
How to confirm it’s fixed
The error should no longer appear when you repeat the same steps that used to trigger it. For an extra check, open Reliability Monitor and confirm there are fewer new “Application failure” entries.
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