Prevent bypassing Windows Defender SmartScreen prompts for sites

Supported on: Microsoft Edge on Windows 10, Version 1511 or later

Registry

HKLM Software\Policies\Microsoft\Edge

HKCU Software\Policies\Microsoft\Edge

Value name: PreventOverride

Enabled: PreventOverride = 1

Disabled: PreventOverride = 0

Description

This policy setting lets you decide whether employees can override the Windows Defender SmartScreen warnings about potentially malicious websites. If you enable this setting, employees can't ignore Windows Defender SmartScreen warnings and they are blocked from continuing to the site. If you disable or don't configure this setting, employees can ignore Windows Defender SmartScreen warnings and continue to the site.