@petem MsMpEng.exe is part of Windows Defender (built-in antivirus). You could try disabling that and download a different A/V program. Otherwise, it might just be doing updates and running initial scans and might calm down after awhile.
@petem MsMpEng.exe is part of Windows Defender (built-in antivirus). You could try disabling that and download a different A/V program. Otherwise, it might just be doing updates and running initial scans and might calm down after awhile.