Forum Discussion
Windows Defender Antimalware Platform 4.18.2101.4 - Problems with group policy and AD MMC
Today the Windows Defender Antimalware Platform was updated automatically from version 4.18.2011.6 -> 4.18.2101.4 on my computer. I didn't notice it at first but since this morning I was experienci...
Can confirm that we are seeing issues with group policy processing times jumping to 5 minutes after Defender Platform was upgraded to 4.18.2101.4 few days ago. Reverting back to 4.18.2011.6 fixes this issue. Windows 10 version where I have confirmed this are 1809 and 1909.
I have logged a ticket with Microsoft Premier Support.
pgrubor Did you get a response from Premier on this? Some folks are saying that 2101.4 and 2101.8 are now marked as superseded.
4.18.2101.8 is available and we do not have those group policy issue anymore with this version. 4.18.2101.4 is gone.
All,
I see that version 4.18.2101.8 is expired since yesterday, so I don't know what was wrong with that version. Microsoft released a new version 4.18.2101.9 on WSUS.
The release notes are still mentioning version 4.18.2101.8 however...
Manage Microsoft Defender Antivirus updates and apply baselines - Windows security | Microsoft Docs
I'm opening a case for this now, as well. Does it seem like 4.18.2101.4 was pulled? Seemed like it was released on 1/25/2021. I seem to have a mix of clients on that version, and 4.18.2011.6. Both claim to be 'completely up to date.' Documentation seems to show that 2011.6 is the latest version.......
Any traction on your case?
I've experienced the same issues and come across this thread. 4.18.2101.4 was definitely pulled as MECM shows it as expired and superseded on 1/30.
4.18.2101.8 was released today and from my limited testing so far it appears to resolve the issue.
adamgrieger we have seen issues with 4.18.2101.4 and .8 it looks like there is something still going on. Hopefully, your testing goes well but I would continue to test at this point.
