Prevent Internet Explorer security prompt for Windows Installer scripts
Verified with Windows 11 25H2 — updated on July 30, 2026
Supported on: At least Windows 2000
Path in the GPO console
Computer Configuration\Administrative Templates\Windows Components\Windows Installer Description
This policy setting allows Web-based programs to install software on the computer without notifying the user. If you disable or do not configure this policy setting, by default, when a script hosted by an Internet browser tries to install a program on the system, the system warns users and allows them to select or refuse the installation. If you enable this policy setting, the warning is suppressed and allows the installation to proceed. This policy setting is designed for enterprises that use Web-based tools to distribute programs to their employees. However, because this policy setting can pose a security risk, it should be applied cautiously.
Registry
HKLM
Software\Policies\Microsoft\Windows\Installer Value name: SafeForScripting
Enabled: SafeForScripting = 1
Disabled: SafeForScripting = 0
MDM / Intune (CSP)
./Device/Vendor/MSFT/Policy/Config/ADMX_MSI/SafeForScripting 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: Prevent Internet Explorer security prompt for Windows Installer scripts
; State: Enabled
; Supported on: At least Windows 2000
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Installer]
"SafeForScripting"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Prevent Internet Explorer security prompt for Windows Installer scripts
# State: Enabled
# Supported on: At least Windows 2000
$path = 'HKLM:\Software\Policies\Microsoft\Windows\Installer'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'SafeForScripting' -Value 1 -Type DWordIntune XML
OMA-URI: ./Device/Vendor/MSFT/Policy/Config/ADMX_MSI/SafeForScripting
Data type: String
Value:
<enabled/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Prevent Internet Explorer security prompt for Windows Installer scripts
# State: Enabled
# Supported on: At least Windows 2000
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\Installer' -Name 'SafeForScripting' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Prevent Internet Explorer security prompt for Windows Installer scripts
# State: Enabled
# Supported on: At least Windows 2000
$path = 'HKLM:\Software\Policies\Microsoft\Windows\Installer'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'SafeForScripting' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Prevent Internet Explorer security prompt for Windows Installer scripts
# State: Enabled
# Supported on: At least Windows 2000
# 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: Prevent Internet Explorer security prompt for Windows Installer scripts
# State: Enabled
# Supported on: At least Windows 2000
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\Installer' -Name 'SafeForScripting' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Prevent Internet Explorer security prompt for Windows Installer scripts
# State: Enabled
# Supported on: At least Windows 2000
$path = 'HKLM:\Software\Policies\Microsoft\Windows\Installer'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'SafeForScripting' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.