KB5027215 Windows 10 Cumulative Update 19044.3086 and 19045.3086 Win Update

This one was a little more glacial than the usual update

It took from 12:30 (CDT) to 12:35 to install an antimalware platform update

then from 12:35 to 12:38 to install the definition update

then from 12:38 to 1:42 to install the MSRT update

then from 1:57 to 2:21 to get to the "reboot to install the NET Update" screen

the monthly update was "install pending" with no apparent action or option to install the monthly update first. So I rebooted

Upon rebooting, it took from 2:36 to 4:09 to install the monthly update

Usually, there's just one Defender update, not two. Usually the MRT update is a faster kind of slow. I think most months the NET update goes though before the Patch Day so that delayed it. I wasn't really doing anything important this afternoon anyways.

Fortunately, within the last week, I figured out what had been slowing down my logins for the last year-ish and made it slightly better on a day when I did 2 reboots and 3 logins. When I went into Users/my-username/AppData/Local/Temp I found a bunch of folders that were a little under 10mb, all with the same files. I deleted the ones older than a certain date as a test run, and that has cleared up a little over 10gb and reduced the size of that temp folder to like 4gb.

To compare the login times from last Patch Day to today, it was 583 seconds back in May and 220 seconds today (logins are usually slower after reboots, my other login times today were 237/258 seconds, so all around 4 minutes instead of over 9). Yes, this is a thing I should have realized was the reason for slow logins awhile ago. My computer hasn't burst into flames once after deleting those files and I could delete some more of those folders later.

My other device doesn't need reboots to install NET updates, so i'll avoid that delay later. (edit: nah the NET update on the laptop needs a reboot so it'll just have a "restart now" button on the screen as the Cumulative Update installs)

edit2: Aww, the "Cleaning Up" that happens when you reboot due to a CU and a NET update at the same time. I have not missed that at all.

eLPuSHeR said:

I have also noticed Antimalware Platform v4.18.23050.5 is on Microsoft Catalog.

Platform updates are automatically done whenever Windows security updates its malware definitions i.e. what we commonly refer to as a check for updated definitions is always a check for both definition & platform updates.
This is true whether the update check is run from WU, from the Windows security UI or through cmd/ps commands.

So you need take no action to get the platform update and might even already have it.


All the best,
Denis

My platform update came in my routine WD definitions updates check [batch file] so it's not a beta.
MS often release updates region by region. Perhaps they have not included Spain yet.

Denis

Special said:

Anyone know why "Automatic Maintenance" now after this update does not clean up old Windows Defender Platforms?



Running Automatic Maintenance is suppose to clean up all but the latest two Platforms, ie. delete "4.18.2304.8-0" but leaving the last two "4.18.23050.3-0" and "4.18.23050.5-0".

Anyone else notice this?

I have always had the last three versions in that folder.


All the best,
Denis

Windows 10 KB5027215 update is causing installation issues for some users - Neowin