This policy setting turns off the advertising ID, preventing apps from using the ID for experiences across apps. The recommended state for this setting is: Enabled. Rationale: Tracking user activity for advertising purposes, even anonymously, may be a privacy concern. In an enterprise managed environment, applications should not need or require tracking for targeted advertising. Impact: The advertising ID is turned off. Apps can't use the ID for experiences across apps.
To establish the recommended configuration via GP, set the following UI path to Enabled: Computer Configuration\Policies\Administrative Templates\System\User Profiles\Turn off the advertising ID Note: This Group Policy path may not exist by default. It is provided by the Group Policy template UserProfiles.admx/adml that is included with the Microsoft Windows 8.1 & Server 2012 R2 Administrative Templates (or newer). Default Value: Disabled. (Users can control whether apps can use the advertising ID for experiences across apps.)