SignatureUpdateInterval specifies the interval at which to check for definition updates.



Specifies <time> as a number that represents the number of hours between definition update checks. Valid values range from 1 (every hour) to 24 (once per day).

The default value is 24 (once per day).

Valid Configuration Passes




Parent Hierarchy

Security-Malware-Windows-Defender | SignatureUpdateInterval

Applies To

For Windows Windows Server 2016 editions, Windows Defender is installed with the operating system.

For Windows Server 2012, Windows Server 2008 R2 and Windows Server 2008, Windows Defender is installed with the Desktop Experience Pack.

For a full list of the Windows editions and architectures that this component supports, see Security-Malware-Windows-Defender.

XML Example

The following XML output shows how to specify that Windows Defender will check for a new update definition file every 11 hours.