The msmpeng.exe file is a key process within Windows Defender. Windows Defender is a built-in program on Microsoft Windows and provides basic spyware, malware, and virus protection on a variety of operating systems. The process was first released with Windows Vista. Upon the release, previous versions of Windows operating systems were able to download a free update to receive this program if desired. Other file names associated with this process are mpeng.exe.

File name: Msmpeng.exe
Application: Windows Defender
Publisher: Microsoft
Rating: 3 stars based on 472 votes
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