Turn off calls during Quiet Hours
Verified with Windows 11 25H2 — updated on July 30, 2026
Supported on: Windows Server 2012 R2, Windows 8.1 or Windows RT 8.1 only
Path in the GPO console
User Configuration\Administrative Templates\Start Menu and Taskbar\Notifications Description
This policy setting blocks voice and video calls during Quiet Hours. If you enable this policy setting, voice and video calls will be blocked during the designated Quiet Hours time window each day, and users will not be able to customize any other Quiet Hours settings. If you disable this policy setting, voice and video calls will be allowed during Quiet Hours, and users will not be able to customize this or any other Quiet Hours settings. If you do not configure this policy setting, voice and video calls will be allowed during Quiet Hours by default. Adminstrators and users will be able to modify this setting.
Registry
HKCU
SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\QuietHours Value name: AllowCalls
Enabled: AllowCalls = 0
Disabled: AllowCalls = 1
MDM / Intune (CSP)
./User/Vendor/MSFT/Policy/Config/ADMX_WPN/NoCallsDuringQuietHours 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: Turn off calls during Quiet Hours
; State: Enabled
; Supported on: Windows Server 2012 R2, Windows 8.1 or Windows RT 8.1 only
[HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\QuietHours]
"AllowCalls"=dword:00000000More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Turn off calls during Quiet Hours
# State: Enabled
# Supported on: Windows Server 2012 R2, Windows 8.1 or Windows RT 8.1 only
# 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\Windows\CurrentVersion\QuietHours'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowCalls' -Value 0 -Type DWordIntune XML
OMA-URI: ./User/Vendor/MSFT/Policy/Config/ADMX_WPN/NoCallsDuringQuietHours
Data type: String
Value:
<enabled/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Turn off calls during Quiet Hours
# State: Enabled
# Supported on: Windows Server 2012 R2, Windows 8.1 or Windows RT 8.1 only
# 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
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\QuietHours' -Name 'AllowCalls' -Expected 0 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Turn off calls during Quiet Hours
# State: Enabled
# Supported on: Windows Server 2012 R2, Windows 8.1 or Windows RT 8.1 only
# 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\Windows\CurrentVersion\QuietHours'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowCalls' -Value 0 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Turn off calls during Quiet Hours
# State: Enabled
# Supported on: Windows Server 2012 R2, Windows 8.1 or Windows RT 8.1 only
# 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: Turn off calls during Quiet Hours
# State: Enabled
# Supported on: Windows Server 2012 R2, Windows 8.1 or Windows RT 8.1 only
# 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
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\QuietHours' -Name 'AllowCalls' -Expected 0 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Turn off calls during Quiet Hours
# State: Enabled
# Supported on: Windows Server 2012 R2, Windows 8.1 or Windows RT 8.1 only
# 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\Windows\CurrentVersion\QuietHours'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowCalls' -Value 0 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.