Do not allow Windows Messenger to be run
Verified with Windows 11 25H2 — updated on July 10, 2026
Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
Path in the GPO console
User Configuration\Administrative Templates\Windows Components\Windows Messenger Description
This policy setting allows you to prevent Windows Messenger from running. If you enable this policy setting, Windows Messenger does not run. If you disable or do not configure this policy setting, Windows Messenger can be used. Note: If you enable this policy setting, Remote Assistance also cannot use Windows Messenger. Note: This policy setting is available under both Computer Configuration and User Configuration. If both are present, the Computer Configuration version of this policy setting takes precedence.
Registry
HKCU
Software\Policies\Microsoft\Messenger\Client Value name: PreventRun
Enabled: PreventRun = 1
Disabled: PreventRun = 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: Do not allow Windows Messenger to be run
; State: Enabled
; Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
[HKEY_CURRENT_USER\Software\Policies\Microsoft\Messenger\Client]
"PreventRun"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Do not allow Windows Messenger to be run
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\Software\Policies\Microsoft\Messenger\Client'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'PreventRun' -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: Do not allow Windows Messenger to be run
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
# 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
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\Messenger\Client' -Name 'PreventRun' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Do not allow Windows Messenger to be run
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\Software\Policies\Microsoft\Messenger\Client'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'PreventRun' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Do not allow Windows Messenger to be run
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
# 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: Do not allow Windows Messenger to be run
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
# 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
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\Messenger\Client' -Name 'PreventRun' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Do not allow Windows Messenger to be run
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\Software\Policies\Microsoft\Messenger\Client'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'PreventRun' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.