Policy
Define the number of days after which a catch-up scan is forced
Windows 11 25H2
Policy overview
Key metadata and intent for this policy.
Supported OS tags: Windows10, Windows10RT, Windows11, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2012, WindowsServer2012R2, WindowsServer2016
This policy setting allows you to define the number of consecutive scheduled scans that can be missed after which a catch-up scan will be forced. By default, the value of this setting is 2 consecutive scheduled scans. If you enable this setting, a catch-up scan will occur after the specified number consecutive missed scheduled scans. If you disable or do not configure this setting, a catch-up scan will occur after the 2 consecutive missed scheduled scans.
Registry values
How enabled and disabled states update the registry.
No explicit registry values are set for enabled or disabled states.
Policy elements
Inputs and configuration options exposed by this policy.
| Element | Type | Registry mapping | Constraints & behavior |
|---|---|---|---|
Define the number of scheduled scans that can be missed after which a catch-up scan is forced ID Scan_MissedScheduledScanCountBeforeCatchup | decimal | HKLM\Software\Policies\Microsoft\Windows Defender\Scan\MissedScheduledScanCountBeforeCatchup Type REG_DWORD | Range: 2 to 20 |
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