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chenleo's avatar
chenleo
Icon for Microsoft rankMicrosoft
Jul 13, 2021

Microsoft Defender update for Windows operating system installation images - Signature update

We have requirement that all machines should have antimalware signature less than 7 days old. For the fresh virtual machines, the VHD doesn't have latest signature before the first auto-update, so we plan to use the tool provided here Microsoft Defender update for Windows operating system installation images to update our VHD once a week. 

 

However, this tool is updated monthly which means the signature is not up-to-date, is there a similar tool we can use to update the antimalware signature at least once a week?

4 Replies

  • pvanberlo's avatar
    pvanberlo
    Steel Contributor
    I am not aware of any Microsoft supplied tools that could do this more often. The platform updates are only released once a month. Of course the signatures are released more often so you can download them manually and look for other ways of deploying them.

    Btw, forcing a manual update will download new definitions immediately. I know it’s not perfect but why not trigger this once the image is made available to a user? And then run the monthly updates using the tool you mentioned.

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