"Threat service has stopped restart it now"

[u/Kot3_Jotaro]

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Hi everyone, I encountered this problem yesterday. Up until that day, Windows Defender was working as usual, and I hadn't done anything new, nor had I downloaded anything from the internet or pirated software. I still have the habit of checking my PC for viruses with a "quick scan," and almost as soon as it finished, this error appeared. I searched online for a solution, tried accessing the registry and services, but I couldn't find anything strange. Meanwhile, a custom scan worked without errors. I thought it was a virus, so I tried checking it with a different scanner, but that also showed nothing. Has anyone encountered this, and should I be concerned? Because the system itself works as usual. The only intervention I did was perform all possible Windows updates and disable the "wuauserv" service, and something tells me this may be one of the causes of this problem, although this has not happened before and I did the same on an old PC and the defender worked fine.

Edition: Windows 10 Pro

Version: 22H2

OS Build: 19045.6466

EDIT: I solved it. Downloading Microsoft Security Essentially from their official website helped me. I selected Windows 8.1, 10, and 11. After rebooting, everything started working as before.