This policy setting allows you to configure scanning for all downloaded files and attachments. If you enable or do not configure this setting, scanning for all downloaded files and attachments will be enabled. If you disable this setting, scanning for all downloaded files and attachments will be disabled. Countermeasure: Configure this setting depending on your organization's requirements. Potential Impact: Scanning files and attachments can impact performance. Fix: (1) GPO: Computer ConfigurationAdministrative TemplatesWindows ComponentsWindows DefenderReal-time ProtectionScan all downloaded files and attachments (2) REG: HKEY_LOCAL_MACHINESoftwarePoliciesMicrosoftWindows DefenderReal-Time Protection!DisableIOAVProtection

[enabled/disabled]

(1) GPO: Computer Configuration\Administrative Templates\Windows Components\Windows Defender\Real-time Protection\Scan all downloaded files and attachments (2) REG: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Real-Time Protection!DisableIOAVProtection