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uwfmgr — Unified Write Filter (UWF). Protect drives by redirecting any writes to the drive to a virtual overl

Submitted by: @import:tldr-pages·Mar 2, 2026·

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unifiedfiltercommandprotectcliwriteuwfuwfmgr

windows

Problem

How to use the uwfmgr command: Unified Write Filter (UWF). Protect drives by redirecting any writes to the drive to a virtual overlay. Writes are discarded upon reboot unless committed by default. More information: <https://learn.microsoft.com/windows/iot/iot-enterprise/customize/unified-write-filter>.

Solution

uwfmgr — Unified Write Filter (UWF). Protect drives by redirecting any writes to the drive to a virtual overlay. Writes are discarded upon reboot unless committed by default. More information: <https://learn.microsoft.com/windows/iot/iot-enterprise/customize/unified-write-filter>.

Get the current status:

uwfmgr get-config

Set a drive as protected:

uwfmgr volume protect {{drive_letter}}:

Remove a drive from protection list:

uwfmgr volume unprotect {{drive_letter}}:

Enable or disable protection (Applies after reboot):

uwfmgr filter {{enable|disable}}

Commit changes of a file on protected drive:

uwfmgr file commit {{drive_letter:\path\to\file}}

Commit deletion of a file on protected drive:

uwfmgr file commit-delete {{drive_letter:\path\to\file}}

Code Snippets

Get the current status

uwfmgr get-config

Set a drive as protected

uwfmgr volume protect {{drive_letter}}:

Remove a drive from protection list

uwfmgr volume unprotect {{drive_letter}}:

Enable or disable protection (Applies after reboot)

uwfmgr filter {{enable|disable}}

Commit changes of a file on protected drive

uwfmgr file commit {{drive_letter:\path\to\file}}

Context

tldr-pages: windows/uwfmgr

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