Default risk level for file attachments
Verified with Windows 11 25H2 — updated on July 30, 2026
Supported on: At least Windows XP Professional with SP2
Path in the GPO console
User Configuration\Administrative Templates\Windows Components\Attachment Manager Description
This policy setting allows you to manage the default risk level for file types. To fully customize the risk level for file attachments, you may also need to configure the trust logic for file attachments. High Risk: If the attachment is in the list of high-risk file types and is from the restricted zone, Windows blocks the user from accessing the file. If the file is from the Internet zone, Windows prompts the user before accessing the file. Moderate Risk: If the attachment is in the list of moderate-risk file types and is from the restricted or Internet zone, Windows prompts the user before accessing the file. Low Risk: If the attachment is in the list of low-risk file types, Windows will not prompt the user before accessing the file, regardless of the file's zone information. If you enable this policy setting, you can specify the default risk level for file types. If you disable this policy setting, Windows sets the default risk level to moderate. If you do not configure this policy setting, Windows sets the default risk level to moderate.
Registry
Software\Microsoft\Windows\CurrentVersion\Policies\Associations MDM / Intune (CSP)
./User/Vendor/MSFT/Policy/Config/ADMX_AttachmentManager/AM_SetFileRiskLevel Microsoft Learn documentation Mapping data: Microsoft Learn (CC BY 4.0)
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. ⓘ
.reg file
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Default risk level for file attachments
; State: Enabled
; Supported on: At least Windows XP Professional with SP2
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Associations]
"DefaultFileTypeRisk"=dword:00001807More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Default risk level for file attachments
# State: Enabled
# Supported on: At least Windows XP Professional with SP2
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Policies\Associations'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DefaultFileTypeRisk' -Value 6151 -Type DWordIntune XML
OMA-URI: ./User/Vendor/MSFT/Policy/Config/ADMX_AttachmentManager/AM_SetFileRiskLevel
Data type: String
Value:
<enabled/>
<data id="AM_RiskLevel" value="6151"/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Default risk level for file attachments
# State: Enabled
# Supported on: At least Windows XP Professional with SP2
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
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
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Policies\Associations' -Name 'DefaultFileTypeRisk' -Expected 6151 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Default risk level for file attachments
# State: Enabled
# Supported on: At least Windows XP Professional with SP2
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Policies\Associations'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DefaultFileTypeRisk' -Value 6151 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Default risk level for file attachments
# State: Enabled
# Supported on: At least Windows XP Professional with SP2
# 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: Default risk level for file attachments
# State: Enabled
# Supported on: At least Windows XP Professional with SP2
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
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
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Policies\Associations' -Name 'DefaultFileTypeRisk' -Expected 6151 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Default risk level for file attachments
# State: Enabled
# Supported on: At least Windows XP Professional with SP2
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Policies\Associations'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DefaultFileTypeRisk' -Value 6151 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.