Microsoft released bullettin advising customers experiencing excessive memory consumption by LSASS on Windows Server 2012-2022 DCs that have installed the following Windows Update(s):
KB 5035857: March 12, 2024, KB5035857 (OS Build 20348.2340) Windows Server 2022
KB 5035849: March 12, 2024, KB5035849 (OS Build 17763.5576) Windows Server 2019
KB 5035855: March 14, 2024, KB5035855 (OS Build 14393.5786) Windows Server 2016
KB 5035885: March 12, 2024, KB5035885 Monthly Rollup for Windows Server 2012 R2: March 12, 2024
Fortunately, there are workable solutions that you can use to address the high LSASS usage after the 3b Windows update has been installed.
https://learn.microsoft.com/en-us/windows/release-health/status-windows-server-2022#march-2024
Workarounds suggested by Microsoft are related to install below fix
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