InformationThis policy setting controls if the user is prompted with an 'Always open' check box when an external protocol prompt is show.
The recommended state for this setting is: Disabled.
Allowing a protocol to automatically always open for webpages could allow a malicious website to open programs on a device leaving it open to attacks.
The end user will be prompted each time they click a link that opens an external protocol, even if they have utilized it before.
SolutionTo establish the recommended configuration via GP, set the following UI path to Disabled:
Computer Configuration\Policies\Administrative Templates\Microsoft Edge\Show an 'Always open' checkbox in external protocol dialog
Note: This Group Policy path may not exist by default. It is provided by the Group Policy template MSEdge.admx/adml that can be downloaded from Microsoft here.
Enabled. (v84 or greater)