wersvc.exe

Windows Error Reporting Service

CPU Usage

N/A

Memory

N/A

Location

N/A

Publisher

N/A

Notes

If you modify WER settings, ensure you understand potential impacts on diagnostics and troubleshooting.

Publisher

Microsoft Windows

Availability

Built-in Windows service available on most Windows editions; behavior controlled by policy and user permissions.

Service Name

WerSvc

Default Behavior

Windows Error Reporting runs in the background to collect crash data and optionally report it to Microsoft or a local collector, based on policy.

What is wersvc.exe?

wersvc.exe is the Windows Error Reporting Service, a trusted Windows component that collects diagnostic data from applications that crash or hang and prepares reports for Microsoft or local analysis. It runs in the background as a system service and is designed to improve Windows reliability. In managed environments, its behavior is controlled by group policy.

WER runs as a Windows service named WerSvc, aggregates crash dumps and diagnostic logs, and dispatches reports according to user choices or organization policy. It can be enabled, limited, or disabled via Services or Group Policy, impacting telemetry and feedback loops.

Is it Safe?

Is it a Virus?

Why is it Running?

Reasons it's running:

Crash reporting enabled by policy: If Windows or the enterprise policy enables Windows Error Reporting, WerSvc runs in the background to collect and prepare diagnostic data after app or system crashes.
Telemetry collection for quality improvements: WER gathers minimal telemetry to help Microsoft improve OS stability and app compatibility, running as a low-priority background service.
Post-crash processing and submission: After a fault occurs, WerSvc creates a .wer bundle and submits it according to policy or user choice, which can trigger activity on the service.
System maintenance and update readiness: WER activity can occur during OS maintenance windows or after updates to capture reliability data for recent changes.
Enterprise policy-driven behavior: In managed environments, IT policies may start or maintain WerSvc to ensure standardized error reporting across devices.

Can I Disable or Remove It?

Common Problems

Common Causes & Solutions

: This is usually due to a surge of crash data; ensure the system is up-to-date, check for crashing applications, and consider lowering telemetry level or temporarily disabling WER until you identify the faulty app.
: Verify policy settings; ensure network connectivity; review event logs; confirm that WER is not disabled by group policy or registry.
: Check System and Application events for WerSvc errors, repair corrupted system files with sfc /scannow, and verify services dependencies are intact.
: Run full malware scan with updated AV signatures, verify file path (C:\Windows\System32\wersvc.exe), and compare digital signature to Microsoft Windows signer.
: Re-enable WER or adjust policy back to default if updates depend on telemetry; ensure Windows Update service remains healthy.
: Logging can be normal; if errors persist, patch Windows components, review latest updates, and consider temporarily restricting telemetry to essential data.

Frequently Asked Questions

Is wersvc.exe a safe Windows process?

Yes. wersvc.exe is the Windows Error Reporting Service, a legitimate component that collects crash data to help improve Windows and application stability.

Can I disable Windows Error Reporting without breaking Windows?

You can disable WER via Services or Group Policy, but some diagnostics and feedback functionality will be reduced. Ensure you understand enterprise policies before changing.

Why does wersvc.exe sometimes use CPU in the background?

It may process crash data or prepare reports after errors. If CPU usage is persistent, check for problematic apps, and review Windows Event Logs for crash reports.

How do I verify wersvc.exe is legitimate?

Check that the file is located in C:\Windows\System32, has a Microsoft Windows signature, and verify the SHA256 hash against official Microsoft sources.

What happens to the data WerSvc collects?

Depending on policies, reports may be sent to Microsoft or remain locally for diagnostic purposes. You can adjust telemetry settings to control data sharing.

If I delete wersvc.exe will Windows crash or malfunction?

Deleting or removing the executable is not recommended and can destabilize OS reliability. Use policy-based disablement if you must reduce telemetry.