Prevent users' app data from being stored on non-system volumes

Policy ID
RestrictAppDataToSystemVolume
Scope
Computer Configuration
Supported on
At least Windows 8.1 Update 2
Source
Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category
Windows Components › App Package Deployment

Description


Prevent users' app data from moving to another location when an app is moved or installed on another location.

If you enable this setting, all users' app data will stay on the system volume, regardless of where the app is installed.

If you disable or do not configure this setting, then when an app is moved to a different volume, the users' app data will also move to this volume.

Registry

ComputerHKEY_LOCAL_MACHINE
  • RestrictAppDataToSystemVolumeREG_DWORD

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