en-US edge computer user

Configure Microsoft Edge Scareware blocker to share URLs of sites detected as potential tech scams with Microsoft Defender SmartScreen

Verified with Microsoft Edge 152.0.4191.53 — updated on July 10, 2026

Microsoft Edge 152.0.4191.53

Supported on: Microsoft Edge version 142, Windows 7 or later

Path in the GPO console

Computer Configuration\Administrative Templates\Microsoft Edge\Scareware Blocker settings

Description

This policy controls whether Microsoft Edge shares URLs of sites that are detected as potential tech scams with Microsoft Defender SmartScreen. This policy only takes effect if ScarewareBlockerProtectionEnabled is enabled. If you enable this policy, Microsoft Edge shares URLs of sites detected as potential tech scams with Microsoft Defender SmartScreen. If you disable or don't configure this policy, Microsoft Edge doesn't share URLs of sites detected as potential tech scams with Microsoft Defender SmartScreen.

Registry

HKLM Software\Policies\Microsoft\Edge
HKCU Software\Policies\Microsoft\Edge

Value name: ScarewareBlockerSendDetectedSitesToSmartScreenEnabled

Enabled: ScarewareBlockerSendDetectedSitesToSmartScreenEnabled = 1

Disabled: ScarewareBlockerSendDetectedSitesToSmartScreenEnabled = 0

Export Builder

BETA

Configure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.

These exports write the registry — this is not a managed GPO.

Scope

.reg file

Windows Registry Editor Version 5.00

; Exported from gporais.com
; Policy: Configure Microsoft Edge Scareware blocker to share URLs of sites detected as potential tech scams with Microsoft Defender SmartScreen
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Edge version 142, Windows 7 or later

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge]
"ScarewareBlockerSendDetectedSitesToSmartScreenEnabled"=dword:00000001
More formats (PowerShell, Intune, SCCM)

PowerShell

# Exported from gporais.com
# Policy: Configure Microsoft Edge Scareware blocker to share URLs of sites detected as potential tech scams with Microsoft Defender SmartScreen
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 142, Windows 7 or later

$path = 'HKLM:\Software\Policies\Microsoft\Edge'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ScarewareBlockerSendDetectedSitesToSmartScreenEnabled' -Value 1 -Type DWord

Building a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.

Open the Builder

Embed this policy on your site

What to embed
Theme

Adds one script line: the theme follows your site’s appearance and the height fits the content. If your site blocks scripts, the embed follows the visitor’s system theme.

Preview