Enable App Installer Default Source
Verified with Windows 11 25H2 — updated on July 30, 2026
Supported on: At least Windows Server 2016, Windows 10 Version 1809
Path in the GPO console
Computer Configuration\Administrative Templates\Windows Components\Desktop App Installer Description
This policy controls the default source included with the Windows Package Manager. If you do not configure this setting, the default source for the Windows Package Manager will be available and can be removed. If you enable this setting, the default source for the Windows Package Manager will be available and cannot be removed. If you disable this setting the default source for the Windows Package Manager will not be available.
Registry
HKLM
Software\Policies\Microsoft\Windows\AppInstaller Value name: EnableDefaultSource
Enabled: EnableDefaultSource = 1
Disabled: EnableDefaultSource = 0
MDM / Intune (CSP)
./Device/Vendor/MSFT/Policy/Config/DesktopAppInstaller/EnableDefaultSource 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: Enable App Installer Default Source
; State: Enabled
; Supported on: At least Windows Server 2016, Windows 10 Version 1809
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\AppInstaller]
"EnableDefaultSource"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Enable App Installer Default Source
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1809
$path = 'HKLM:\Software\Policies\Microsoft\Windows\AppInstaller'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'EnableDefaultSource' -Value 1 -Type DWordIntune XML
OMA-URI: ./Device/Vendor/MSFT/Policy/Config/DesktopAppInstaller/EnableDefaultSource
Data type: String
Value:
<enabled/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Enable App Installer Default Source
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1809
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\AppInstaller' -Name 'EnableDefaultSource' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Enable App Installer Default Source
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1809
$path = 'HKLM:\Software\Policies\Microsoft\Windows\AppInstaller'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'EnableDefaultSource' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Enable App Installer Default Source
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1809
# 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: Enable App Installer Default Source
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1809
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\AppInstaller' -Name 'EnableDefaultSource' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Enable App Installer Default Source
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1809
$path = 'HKLM:\Software\Policies\Microsoft\Windows\AppInstaller'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'EnableDefaultSource' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.