The antimalware service executable, or MsMpEng.exe, to use the name you’ll probably see crop up in Task Manager, is a component of the Windows Defender antimalware suite of tools.

MsMpEng.exe is a part of Windows's Malware Protection Engine. It may also be labeled as antimalware service executable. It lies at the core of Microsoft's Windows Defender antivirus service.

What is the Antimalware Service Executable process? The Antimalware Service Executable (its file name is MsMpEng.exe) process is Microsoft Defender's background tool that is responsible for scanning ...

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% ...