batcmd.com Windows 10 Services

UAC File Virtualization - Windows 10 Service

Virtualizes file write failures to per-user locations.

This service also exists in Windows 7, 8 and Vista.

Startup Type

Windows 10 edition 1507 1511 1607 1703
Home Automatic Automatic Automatic Automatic
Pro Automatic Automatic Automatic Automatic
Education Automatic Automatic Automatic Automatic
Enterprise Automatic Automatic Automatic Automatic

Default Properties

Display name:UAC File Virtualization
Service name:luafv
Type:filesys
Path:%WinDir%\system32\drivers\luafv.sys
Error control:normal
Group:FSFilter Virtualization

Default Behavior

The UAC File Virtualization service is a file system driver. If UAC File Virtualization fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the luafv service has failed to start.

Dependencies

UAC File Virtualization is unable to start, if the FltMgr service is stopped or disabled.

Restore Default Startup Type for UAC File Virtualization

Automated Restore

1. Select your Windows 10 edition and release, and then click on the Download button below.

2. Save the RestoreUACFileVirtualizationWindows10.bat file to any folder on your hard drive.

3. Right-click the downloaded batch file and select Run as administrator.

4. Restart the computer to save changes.

Note. Make sure that the luafv.sys file exists in the %WinDir%\system32\drivers folder. If this file is missing you can try to restore it from your Windows 10 installation media.