How to Fix WerFault.exe / Error Reporting High CPU on Windows
WerFault.exe or Windows Error Reporting consuming high CPU, constantly crashing, or popup loops? Fix error reporting service issues.
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Main Troubleshooting Guide
How to Fix High CPU Usage →Complete symptoms, causes, and step-by-step solutions
Symptoms
You might be experiencing this problem if you notice:
- •WerFault.exe at high CPU in Task Manager
- •Repeated "Windows Error Reporting" popups
- •WerFault.exe constantly restarting in the background
- •"Problem Reporting" using excessive disk and CPU
- •Multiple WerFault.exe processes running simultaneously
- •System slow due to error reporting activity
Common Causes
- âš Application crashing repeatedly triggers constant error reports
- âš Error reporting queue full of unsubmitted reports
- âš WerFault.exe itself corrupted
- âš Incompatible application causing crash loop
- âš Error reports piling up without internet to submit
- âš Driver crash generating continuous error reports
Solutions
Solution 1: Clear Error Reporting Queue
- 1Open File Explorer and navigate to:
- 2C:\ProgramData\Microsoft\Windows\WER\ReportQueue
- 3Delete all folders inside (these are unsent error reports)
- 4Also clear: C:\ProgramData\Microsoft\Windows\WER\ReportArchive
- 5Also clear: %LOCALAPPDATA%\Microsoft\Windows\WER
- 6This stops WerFault from trying to process old reports
Solution 2: Find the Crashing Application
- 1WerFault runs because something else is crashing
- 2Open Event Viewer > Windows Logs > Application
- 3Filter by Level: "Error"
- 4Look for "Application Error" or "Windows Error Reporting" events
- 5The "Faulting application name" tells you what's crashing
- 6Update or reinstall that application to stop the crash loop
Solution 3: Disable Windows Error Reporting (If Needed)
- 1Open Services (services.msc)
- 2Find "Windows Error Reporting Service"
- 3Right-click > Properties > set Startup type to "Disabled"
- 4Click Stop, then OK
- 5This prevents WerFault from running entirely
- 6Note: Microsoft won't receive crash data, but your PC will be faster if WerFault was misbehaving
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