If the value for SmartScreenPuaEnabled is not set to "REG_DWORD = 1", this is a finding. Use the Windows Registry Editor to navigate to the following key: The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/SmartScreen settings/Configure Microsoft Defender SmartScreen to block potentially unwanted apps" must be set to "Enabled". Microsoft Edge Security Technical Implementation Guideĭetails Check Text ( C-38983r766869_chk ) 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 managed via MDM or joined to a domain via MCX. If this setting is not configured, users can choose whether to use potentially unwanted app blocking with Microsoft Defender SmartScreen. If this setting is disabled, potentially unwanted app blocking with Microsoft Defender SmartScreen is turned off. If this setting is enabled, potentially unwanted app blocking with Microsoft Defender SmartScreen is turned on. Potentially unwanted app blocking with Microsoft Defender SmartScreen is turned off by default. Potentially unwanted app blocking with Microsoft Defender SmartScreen provides warning messages to help protect users from adware, coin miners, bundleware, and other low-reputation apps that are hosted by websites. Here's how to do it.This policy setting configures blocking for potentially unwanted apps with Microsoft Defender SmartScreen. While we recommend you have the SmartScreen filter turned on all the time, you can disable it easily from the Windows Security settings. However, some experienced users may find the feature annoying as it can even block safe apps requiring additional steps to run the setup. SmartScreen is enabled by default on all the Windows OS running systems. When enabled, it helps protect your computer against malicious and phishing sites and block downloads. SmartScreen is also part of Microsoft Edge's security settings. It can also protect you from Microsoft Store and third-party sourced apps that are low on reputation and known to cause unexpected behavior. You can configure it to block apps and files by checking unrecognized apps and files from the web. When a match is found, it blocks the download or site access and warns the user about the action taken. When enabled, SmartScreen screens your downloads against known suspicious sites and developers. SmartScreen relies on reputation-based protection to protect your device from malicious or potentially unwanted apps and websites. How Does Windows SmartScreen Filter Work?
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