Configure Microsoft Defender SmartScreen

This policy setting lets you configure whether to turn on Microsoft Defender SmartScreen. Microsoft Defender SmartScreen provides warning messages to help protect your users from potential phishing scams and malicious software. By default, Microsoft Defender SmartScreen is turned on. If you enable this setting, Microsoft Defender SmartScreen is turned on. If you disable this setting, Microsoft Defender SmartScreen is turned off. If you don't configure this setting, users can choose whether to use Microsoft Defender SmartScreen. This policy is available only on Windows instances that are joined to a Microsoft Active Directory domain, Windows 10 Pro or Enterprise instances that enrolled for device management, or macOS instances that are that are managed via MDM or joined to a domain via MCX.