virtualization:FileSystemWriteVirtualization

Article
10/30/2023

Indicates whether virtualization for the file system is enabled for a package. Disabling virtualization enables your app to access the global file system (or registry) locations seen by other apps, rather than the virtualized file system (or registry) that is created for your app. Any data written to these unvirtualized locations will persist after your app is uninstalled.

Note

This element requires the unvirtualizedResources restricted capability.

Element hierarchy

<virtualization:FileSystemWriteVirtualization>

Syntax

<virtualization:FileSystemWriteVirtualization>

    <!-- Child elements -->
    virtualization:ExcludedDirectories

</virtualization:FileSystemWriteVirtualization>

Attributes and elements

Attributes

None.

Child elements

Child element	Description
virtualization:ExcludedDirectories	Specifies the list of directories that are excluded from file system virtualization.

Parent elements

Parent element	Description
Properties	Defines additional metadata about the package including attributes that describe how the package appears to users.

Remarks

This element requires the unvirtualizedResources restricted capability.

Only file system locations under the %USERPROFILE%\AppData directory support virtualization, and therefore these are the only locations that can be specified to be excluded from virtualization.

This schema and syntax were introduced in the Windows 10, version 2004. Previously, in the Windows 10, version 1903 release, similar functionality was introduced with the desktop6:FileSystemWriteVirtualization element. If an application includes both syntaxes for disabling file system virtualization, the old declaration will be used on pre-2004 OS versions while the new declaration will be used on 2004 and later OS versions.

Requirements

Item	Value
virtualization	`http://schemas.microsoft.com/appx/manifest/virtualization/windows10`
Minimum OS Version	Windows 10 (Build 20348)

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