Configure Microsoft Edge scareware blocker to block sites detected as potential tech scams
Verified with Microsoft Edge 152.0.4191.53 — updated on July 10, 2026
Supported on: Microsoft Edge version 142, Windows 7 or later
Path in the GPO console
Computer Configuration\Administrative Templates\Microsoft Edge - Default Settings (users can override)\Scareware Blocker settings User Configuration\Administrative Templates\Microsoft Edge - Default Settings (users can override)\Scareware Blocker settings Description
This policy controls whether Microsoft Edge blocks sites that are detected as potential tech scams. This policy only takes effect if ScarewareBlockerProtectionEnabled is enabled. If you enable or don't configure this policy, Microsoft Edge blocks sites detected as potential tech scams. If you disable this policy, Microsoft Edge doesn't block sites detected as potential tech scams.
Registry
HKLM
Software\Policies\Microsoft\Edge\Recommended HKCU
Software\Policies\Microsoft\Edge\Recommended Value name: ScarewareBlockerBlocksDetectedSitesEnabled
Enabled: ScarewareBlockerBlocksDetectedSitesEnabled = 1
Disabled: ScarewareBlockerBlocksDetectedSitesEnabled = 0
Export Builder
BETAConfigure 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. ⓘ
Applying both scopes creates an ambiguous configuration (computer takes precedence over user). Only do this intentionally.
.reg file
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Configure Microsoft Edge scareware blocker to block sites detected as potential tech scams
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Edge version 142, Windows 7 or later
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge\Recommended]
"ScarewareBlockerBlocksDetectedSitesEnabled"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Configure Microsoft Edge scareware blocker to block sites detected as potential tech scams
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 142, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\Recommended'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ScarewareBlockerBlocksDetectedSitesEnabled' -Value 1 -Type DWordIntune XML
No direct Policy CSP / OMA-URI mapping for this policy. Use the Intune Remediation tab, or ingest the ADMX in Intune.Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Configure Microsoft Edge scareware blocker to block sites detected as potential tech scams
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 142, Windows 7 or later
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Edge\Recommended' -Name 'ScarewareBlockerBlocksDetectedSitesEnabled' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Configure Microsoft Edge scareware blocker to block sites detected as potential tech scams
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 142, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\Recommended'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ScarewareBlockerBlocksDetectedSitesEnabled' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Configure Microsoft Edge scareware blocker to block sites detected as potential tech scams
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 142, Windows 7 or later
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.
# === Detection script ===
# Exported from gporais.com
# Policy: Configure Microsoft Edge scareware blocker to block sites detected as potential tech scams
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 142, Windows 7 or later
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Edge\Recommended' -Name 'ScarewareBlockerBlocksDetectedSitesEnabled' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Configure Microsoft Edge scareware blocker to block sites detected as potential tech scams
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 142, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\Recommended'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ScarewareBlockerBlocksDetectedSitesEnabled' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.