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Trigger a quick scan after X days without any scans

Verified with Windows 11 25H2 — updated on July 10, 2026

Windows 11 25H2

Supported on: At least Windows Server 2012, Windows 8 or Windows RT

Path in the GPO console

Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Scan

Description

This policy setting defines the number of days that can pass since the last scan before an aggresive catchup quick scan is automatically triggered. The value represents the number of days that can pass without any scans being performed before an agressive quick scan will be triggered. Valid values range from 7 to 60 days. If not configured, aggressive quick scans will be disabled. By default, the value is set to 25 days when enabled.

Registry

HKLM Software\Policies\Microsoft\Windows Defender\Scan

Value name: DaysUntilAggressiveCatchupQuickScan

More options available

Options

Specify how many days without scans should pass before an aggressive quick scan is triggered
DaysUntilAggressiveCatchupQuickScan decimal - range 7-60 - default: 25

Export Builder

BETA

Configure 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: Trigger a quick scan after X days without any scans
; State: Enabled
; Supported on: At least Windows Server 2012, Windows 8 or Windows RT

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\Scan]
"DaysUntilAggressiveCatchupQuickScan"=dword:00000001
"DaysUntilAggressiveCatchupQuickScan"=dword:00000019
More formats (PowerShell, Intune, SCCM)

PowerShell

# Exported from gporais.com
# Policy: Trigger a quick scan after X days without any scans
# State: Enabled
# Supported on: At least Windows Server 2012, Windows 8 or Windows RT

$path = 'HKLM:\Software\Policies\Microsoft\Windows Defender\Scan'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DaysUntilAggressiveCatchupQuickScan' -Value 1 -Type DWord
Set-ItemProperty -Path $path -Name 'DaysUntilAggressiveCatchupQuickScan' -Value 25 -Type DWord

Building a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.

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