Policy
Disable installing Windows apps on non-system volumes
This policy setting allows you to manage installing Windows apps on additional volumes such as secondary partitions, USB drives, or SD cards. If you enable this setting, you can't move or install Windows apps on volumes that are not the system volume. If you disable or do not configure this setting, you can move or install Windows apps on other volumes.
Pack Microsoft Windows
Category Windows Components / App Package Deployment
Policy ID
8a7f91b62dd1 Internal name
DisableDeploymentToNonSystemVolumes Registry
Copy registry mappings
HKLM\Software\Policies\Microsoft\Windows\Appx\RestrictAppToSystemVolume (enabled) = 1
HKLM\Software\Policies\Microsoft\Windows\Appx\RestrictAppToSystemVolume (disabled) = 0 Policy notes
This policy setting allows you to manage installing Windows apps on additional volumes such as secondary partitions, USB drives, or SD cards. If you enable this setting, you can't move or install Windows apps on volumes that are not the system volume. If you disable or do not configure this setting, you can move or install Windows apps on other volumes.
Related policies
Allow a Windows app to share application data between usersAllow all trusted apps to installAllow deployment operations in special profilesAllowed package family names for non-admin user installAllows development of packaged Microsoft Store apps and installing them from an integrated development environment (IDE)Archive infrequently used appsNot allow per-user unsigned packages to install by default (requires explicitly allow per install)