Update Windows Defender schedule via command line or gpo?

Posted by Zenox on Super User See other posts from Super User or by Zenox
Published on 2012-10-01T15:04:37Z Indexed on 2012/10/01 15:42 UTC
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Filed under:

windows-registry

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scheduled-tasks

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windows-defender

I'm looking to find a way to update some Windows Defender settings via command line, gpo etc.

From my research it looks like windows defender creates a hidden scheduled task named 'MP Scheduled Scan', but modifying this task does not seem to make a difference as to what shows up in the Windows Defender UI.

I have also done some process monitoring to see what data Windows Defender uses and I can see that it reads/writes to the 'HKLM:\SOFTWARE\Microsoft\Windows Defender\Scan' ScheduleDay key, but if I attempt to modify this key, I get an "Error Writing the new values contents" error message.

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