Turn on asynchronous inspection
Verified with Windows 11 25H2 — updated on July 10, 2026
Supported on: At least Windows Server 2016, Windows 10 Version 1709
Path in the GPO console
Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Network Inspection System Description
Control whether network protection can improve performance by switching from real-time inspection to asynchronous inspection. Disabled (Default): If Not Configured or Disabled, asynchronous inspection will not be enabled for network protection. Enabled: If Enabled, switching to asynchronous inspection will be allowed for network protection.
Registry
HKLM
Software\Policies\Microsoft\Windows Defender\NIS Value name: AllowSwitchToAsyncInspection
Enabled: AllowSwitchToAsyncInspection = 1
Disabled: AllowSwitchToAsyncInspection = 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 on asynchronous inspection
; State: Enabled
; Supported on: At least Windows Server 2016, Windows 10 Version 1709
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\NIS]
"AllowSwitchToAsyncInspection"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Turn on asynchronous inspection
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1709
$path = 'HKLM:\Software\Policies\Microsoft\Windows Defender\NIS'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowSwitchToAsyncInspection' -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: Turn on asynchronous inspection
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1709
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\NIS' -Name 'AllowSwitchToAsyncInspection' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Turn on asynchronous inspection
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1709
$path = 'HKLM:\Software\Policies\Microsoft\Windows Defender\NIS'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowSwitchToAsyncInspection' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Turn on asynchronous inspection
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1709
# 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 on asynchronous inspection
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1709
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\NIS' -Name 'AllowSwitchToAsyncInspection' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Turn on asynchronous inspection
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1709
$path = 'HKLM:\Software\Policies\Microsoft\Windows Defender\NIS'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowSwitchToAsyncInspection' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.