Disallow Kerberos authentication
Verified with Windows 11 25H2 — updated on July 30, 2026
Supported on: At least Windows Vista
Path in the GPO console
Computer Configuration\Administrative Templates\Windows Components\Windows Remote Management (WinRM)\WinRM Service Description
This policy setting allows you to manage whether the Windows Remote Management (WinRM) service accepts Kerberos credentials over the network. If you enable this policy setting, the WinRM service does not accept Kerberos credentials over the network. If you disable or do not configure this policy setting, the WinRM service accepts Kerberos authentication from a remote client.
Registry
HKLM
Software\Policies\Microsoft\Windows\WinRM\Service Value name: AllowKerberos
Enabled: AllowKerberos = 0
Disabled: AllowKerberos = 1
MDM / Intune (CSP)
./Device/Vendor/MSFT/Policy/Config/ADMX_WindowsRemoteManagement/DisallowKerberos_1 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: Disallow Kerberos authentication
; State: Enabled
; Supported on: At least Windows Vista
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WinRM\Service]
"AllowKerberos"=dword:00000000More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Disallow Kerberos authentication
# State: Enabled
# Supported on: At least Windows Vista
$path = 'HKLM:\Software\Policies\Microsoft\Windows\WinRM\Service'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowKerberos' -Value 0 -Type DWordIntune XML
OMA-URI: ./Device/Vendor/MSFT/Policy/Config/ADMX_WindowsRemoteManagement/DisallowKerberos_1
Data type: String
Value:
<enabled/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Disallow Kerberos authentication
# State: Enabled
# Supported on: At least Windows Vista
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\WinRM\Service' -Name 'AllowKerberos' -Expected 0 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Disallow Kerberos authentication
# State: Enabled
# Supported on: At least Windows Vista
$path = 'HKLM:\Software\Policies\Microsoft\Windows\WinRM\Service'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowKerberos' -Value 0 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Disallow Kerberos authentication
# State: Enabled
# Supported on: At least Windows Vista
# 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: Disallow Kerberos authentication
# State: Enabled
# Supported on: At least Windows Vista
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\WinRM\Service' -Name 'AllowKerberos' -Expected 0 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Disallow Kerberos authentication
# State: Enabled
# Supported on: At least Windows Vista
$path = 'HKLM:\Software\Policies\Microsoft\Windows\WinRM\Service'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowKerberos' -Value 0 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.