Define the number of days after which a catch-up definition update is required

This policy setting allows you to define the number of days after which a catch-up definition update will be required. By default, the value of this setting is 1 day.

If you enable this setting, a catch-up definition update will occur after the specified number of days.

If you disable or do not configure this setting, a catch-up definition update will be required after the default number of days.

Define the number of days after which a catch-up definition update is required

Registry Hive	HKEY_LOCAL_MACHINE
Registry Path	Software\Policies\Microsoft\Microsoft Antimalware\Signature Updates
Value Name	SignatureUpdateCatchupInterval
Value Type	REG_DWORD
Default Value	1
Min Value	0
Max Value	4294967295