Policy
Trigger a quick scan after X days without any scans
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.
b5092a2b5f4c Scan_DaysUntilAggressiveCatchupQuickScan Registry
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HKLM\Software\Policies\Microsoft\Windows Defender\Scan\DaysUntilAggressiveCatchupQuickScan Policy notes
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.