uwftroubleshooting.md

title	description	MS-HAID	MSHAttr	ms.assetid	author	ms.author	ms.service	ms.subservice	ms.date	ms.topic
Troubleshooting Unified Write Filter (UWF)	Troubleshooting Unified Write Filter (UWF)	p\_embedded.troubleshooting\_unified\_write\_filter\_\_UWF_\_blue p\_enterprise\_customizations.troubleshooting\_unified\_write\_filter\_uwf	PreferredSiteName:MSDN PreferredLib:/library/windows/hardware	d9f0f26f-3545-46c3-887e-be21895bff66	TerryWarwick	twarwick	windows-iot	iot	05/02/2017	article

Troubleshooting Unified Write Filter (UWF)

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.

Related topics

Unified Write Filter

Common write filter exclusions

Service UWF-protected devices

Unified Write Filter WMI provider reference

uwfmgr.exe