Since their release on Patch Tuesday, the updates have been breaking Windows, causing spontaneous boot loops on Windows domain controller servers, breaking Hyper-V and making ReFS volume systems unavailable.
Microsoft has yanked the Windows Server updates it issued on Patch Tuesday after admins found that the updates had critical bugs that break three things: They trigger spontaneous boot loops on Windows servers that act as domain controllers, break Hyper-V and render ReFS volume systems unavailable.
This month’s batch included the Windows Server 2012 R2 KB5009624 update, the Windows Server 2019 KB5009557 update and the Windows Server 2022 KB5009555 update, all of which are apparently buggy.
“Administrators of Windows Domain Controllers should be careful about installing the January 2022 security updates,” reported BornCity, which is a blog about information technology run by German freelance writer and physics engineer Günter Born.
“I have now received numerous reports that Windows servers acting as domain controllers will not boot afterwards,” Born wrote. “Lsass.exe (or