Allow time invalid certificates
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\Smart Card Description
This policy setting permits those certificates to be displayed for logon that are either expired or not yet valid. Under previous versions of Microsoft Windows, certificates were required to contain a valid time and not be expired. The certificate must still be accepted by the domain controller in order to be used. This setting only controls the displaying of the certificate on the client machine. If you enable this policy setting certificates will be listed on the logon screen regardless of whether they have an invalid time or their time validity has expired. If you disable or do not configure this policy setting, certificates which are expired or not yet valid will not be listed on the logon screen.
Registry
SOFTWARE\Policies\Microsoft\Windows\SmartCardCredentialProvider Value name: AllowTimeInvalidCertificates
Enabled: AllowTimeInvalidCertificates = 1
Disabled: AllowTimeInvalidCertificates = 0
MDM / Intune (CSP)
./Device/Vendor/MSFT/Policy/Config/ADMX_Smartcard/AllowTimeInvalidCertificates 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: Allow time invalid certificates
; State: Enabled
; Supported on: At least Windows Vista
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\SmartCardCredentialProvider]
"AllowTimeInvalidCertificates"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Allow time invalid certificates
# State: Enabled
# Supported on: At least Windows Vista
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\SmartCardCredentialProvider'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowTimeInvalidCertificates' -Value 1 -Type DWordIntune XML
OMA-URI: ./Device/Vendor/MSFT/Policy/Config/ADMX_Smartcard/AllowTimeInvalidCertificates
Data type: String
Value:
<enabled/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Allow time invalid certificates
# 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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\SmartCardCredentialProvider' -Name 'AllowTimeInvalidCertificates' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Allow time invalid certificates
# State: Enabled
# Supported on: At least Windows Vista
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\SmartCardCredentialProvider'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowTimeInvalidCertificates' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Allow time invalid certificates
# 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: Allow time invalid certificates
# 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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\SmartCardCredentialProvider' -Name 'AllowTimeInvalidCertificates' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Allow time invalid certificates
# State: Enabled
# Supported on: At least Windows Vista
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\SmartCardCredentialProvider'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowTimeInvalidCertificates' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.