3.1. Reputation-based protection settings
3.1.1. Check apps and files
Disable Check apps and files
GPO
Computer Configuration › Administrative Templates › Windows Components › File Explorer › Configure Windows Defender SmartScreen
☑
DISABLED
Policy must be enabled and set to disable to apply.
Updated: 2021-02-19 Reference
Regedit
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer
SmartScreenEnabled
SZ
Off
Updated: 2021-02-19 Reference
Regedit
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\System
EnableSmartScreen
DWORD
0
Updated: 2021-02-19 Reference
3.1.2. SmartScreen for Microsoft Edge
Edge will eventually be removed; until then, leave enabled for Edge browser.
3.1.3. Potentially unwanted app blocking
Disable Potentially unwanted app blocking
Blocking downloads cannot be managed. Leave download blocking enabled.
GPO
Computer Configuration › Administrative Templates › Windows Components › Microsoft Defender Antivirus › Configure detection for potentially unwanted applications
☑
ENABLED
Options
Disabled (Default)
Policy must be enabled and set to disable to apply.
3.1.4. SmartScreen for Microsoft Store apps
Disable SmartScreen for Microsoft Store apps
Warnings will occur if notifications are enabled.
Regedit
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\AppHost
EnableWebContentEvaluation
DWORD
0
PreventOverride
DWORD
0
Updated: 2021-02-19 Reference
Regedit
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\AppHost
EnableWebContentEvaluation
DWORD
0
PreventOverride
DWORD
0
Updated: 2021-02-19 Reference