Whenever a Windows system slows down, the first approach should be to check the status of resource usage in the Task Manager. Usually, it shoots up to even 100%, thus causing the system to hang or ...

I just noticed on my mom's computer that some "MsMpEng.exe" process (labeled "Antimalware Service Executable" and located under "C Program Files\Microsoft Security Client\") is consuming 100% of CPU.

Antimalware Service Executable is the core process of the default antivirus and antimalware service in Windows 10 and 11. This articile explains what the process does, whether your computer needs it, ...