Display additional text to clients when they need to perform an action

This policy setting allows you to configure whether or not to display additional text to clients when they need to perform an action. The text displayed is a custom administrator-defined string. For example, the phone number to call the company help desk. The client interface will only display a maximum of 1024 characters. Longer strings will be truncated before display.

If you enable this setting, the additional text specified will be displayed.

If you disable or do not configure this setting, there will be no additional text displayed.

Supported on: At least Windows Server 2012, Windows 8 or Windows RT
Display additional text to clients when they need to perform an action

Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Microsoft\Windows Defender\UX Configuration
Value NameCustomDefaultActionToastString
Value TypeREG_SZ
Default Value

windowsdefender.admx

Administrative Templates (Computers)

Administrative Templates (Users)