The Antimalware Service Executable, also known as MsMpEng.exe, is a critical component of Windows Defender that runs in the background to protect your system from malware and other security threats.

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.

Ask anyone around whether their PC would do great with third-party antivirus software, and you'll most likely get a yes. That's not because their PC lacks a default cybersecurity service. Instead, ...