Windows 10: What is the default value for Set-MpPreference -ScanPurgeItemsAfterDelay Delete Windows...

Hello.What is the default value for Set-MpPreference -ScanPurgeItemsAfterDelay Delete Windows Defender Protection History

:)

 

What's default value for Set-MpPreference -SignatureScheduleDay?

Thanks. I see that

Set-MpPreference (Defender) | Microsoft Docs

was created 8 years ago.

But someone copied my text from here, i see it here:

https://www.****/threads/whats-default-value-for-set-mppreference-signaturescheduleday.629177/, (it's removed now after my post about it here and also modified my post) there was that default value is 8.

I will enter Set-MpPreference -SignatureScheduleDay Monday.

And something else about Defender's updates. Files in C:\ProgramData\Microsoft\Windows Defender\Definition Updates are becoming bigger. Does new update replace previous one or is new update added? Is there any way to delete these files? How to close Defender without Group policy?

 

What's default value for Set-MpPreference -SignatureScheduleDay?

I see that Defender is updating every day but on some sites including

Set-MpPreference (Defender) | Microsoft Docs

i see that default value is 8 - never.

 

Windows 10 Pro, Defender: stop deleting "threats" without explicit permission

You’re always welcome , Jeff.



Event ID 1013 indicates that the detection History has been deleted:



Microsoft Defender Antivirus event IDs and error codes | Microsoft Docs




-ScanPurgeItemsAfterDelay

Specifies the number of days to keep items in the scan history folder. After this time, Windows Defender removes the items. If you specify a value of zero, Windows Defender does not remove items. If you do not specify
a value, Windows Defender removes items from the scan history folder after the default length of time, which is 30 days.



I just checked this with Get-MpPreference, and you’re absolutely right – this is now set to 15 days by default rather than 30.



Anyway, I think you should be able to prevent these history deletes by setting the value to 0 at the elevated PowerShell prompt:



Set-MpPreference -ScanPurgeItemsAfterDelay 0