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Troubleshooting Unified Write Filter (UWF)

  • Artikel
  • Gäller för:
    ✅ Windows 11, ✅ Windows 10

Review the log files and error message information locations for Unified Write Filter (UWF) on your Windows 10 Enterprise device.

If you are having difficulties configuring Unified Write Filter (UWF) on your device, see the following information about how to find event log and error message information for troubleshooting problems with UWF.

Event logs

UWF uses Windows Event Log to log events, errors and messages.

  • Events related to overlay consumption are sent by UWF kernel mode components and are logged in the Windows Logs\System event log.
  • Event related to configuration changes and servicing logs are sent by UWF user mode components:
    • Error messages are logged in the Applications and Services Logs\Microsoft\Windows\UnifiedWriteFilter\Admin event log.
    • Informational messages are logged in the Applications and Services Logs\Microsoft\Windows\UnifiedWriteFilter\Operational event log.

Unified Write Filter

Common write filter exclusions

Service UWF-protected devices

Unified Write Filter WMI provider reference

uwfmgr.exe