KB4540673 CU Win 10 v1903 build 18362.719 and v1909 build 18363.719 Win Update

downloaded and installation without any error for while!
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Not sure if this should be posted here or in the Antivirus, Firewalls and System Security section.

Ever since installing this cumulative update on March 10th, all Defender definition updates that have been installing after the CU went in are no longer showing up in the Windows Update update history -- but they are showing up in the Windows Security user interface. Two friends also reporting the same thing.

Latest definition update today.....


Installed updates from Windows Update update history. Note last entry is from March 10th just before CU was installed.....


No errors reported anywhere. Anyone else seeing this?

Crizal said:

Ever since installing this cumulative update on March 10th, all Defender definition updates that have been installing after the CU went in are no longer showing up in the Windows Update update history -- but they are showing up in the Windows Security user interface. Two friends also reporting the same thing....
... Anyone else seeing this?

No, not the case here.

I have one in history for today the 11th and the total is 51? I thought it stopped at 50 and pushed the older ones off.

My virus and threat page is still like the old style.

@Bree, @Anak -- thanks for responding. I just saw a third friend's computer and it's got the same thing as mine. Doesn't seem to be hurting anything. Another Microsoft mystery.

Crizal said:

Ever since installing this cumulative update on March 10th, all Defender definition updates that have been installing after the CU went in are no longer showing up in the Windows Update update history.

No errors reported anywhere. Anyone else seeing this?

All the more curious about Defender these days, I'm seeing missing days going back well before this update in:

Settings > Windows Update > View update history > Definition Updates



...compared to what's logged into the Reliability Monitor:




--------------------- Attention ! ----------------------

Here's some late breaking news. Defender Platform update - Before: 4.18.2003.4-0 :Now: 4.18.2003.5-0 ::

@Farvatten -- Interesting missing days. I don't have that. Also still don't have the new Defender Platform update and 4.18.2001.10 is still showing in Microsoft Update Catalog (as I write this). Curious, bizarre. Then again, April Fools Day is not that far off.

--------------------- Attention ! ----------------------
Here's some late breaking news. Defender Platform update - Before: 4.18.2003.4-0 :Now: 4.18.2003.5-0 ::

Same here, I seen the platform update for others but I haven't seen one for me. My platform: Antimalware Client Version: 4.18.2001.10

Crizal said:

@Farvatten -- Also still don't have the new Defender Platform update and 4.18.2001.10 is still showing in Microsoft Update Catalog (as I write this). Curious, bizarre. Then again, April Fools Day is not that far off.

Anak said:

Same here, I seen the platform update for others but I haven't seen one for me. My platform: Antimalware Client Version: 4.18.2001.10

Weird how I keep getting them, like this newest one: 4.18.2003.5-0

and REALLY disappointed to see it did NOT fix my false 'exclusion item' issue. *sigh*

And why am I so 'lucky'? Why do to keep getting them so quickly?

Current theory is Microsoft sees me as a Defender 'Seeker', a willing guinea pig maybe? I do have a nightly sheduled task that asks for signature updates which will also snag new Platforms I've noticed:

Code:

Command>"C:\ProgramData\Microsoft\Windows Defender\platform\4.18.2003.5-0\MpCmdRun.exe"</Command>
      <Arguments>-signatureUpdate</Arguments

( Of course I have to keep updating this version folder 'n.nn.nnnn.n-n' under ...\platform )