Display a custom message when installation is prevented by a policy setting This policy setting allows you to display a custom message to users in the notification balloon when a device installation is attempted and a policy setting prevents the installation. If you enable this policy setting, Windows displays the text you type in the Detail Text box when a policy setting prevents device installation. If you disable or do not configure this policy setting, Windows displays a default message when a policy setting prevents device installation.

(1) GPO: Computer Configuration\Administrative Templates\System\Device Installation\Device Installation Restrictions!Display a custom message when installation is prevented by a policy setting (2) WMI: ###