For windows 8, 8.1 and 10, windows. Defender replaces microsoft security essentials (though it was available on older versions of windows click at this page with reduced capabilities). Windows defender runs in the background and tells you when you need to.
Intel corporation) c:program filesintelintel(r) rapid storage technologyiastoricon.exe. Motorola solutions, inc.) c:program files read more (x86)intelbluetoothdevmonsrv.exe. Microsoft corporation) c:program fileswindows defendermsmpeng.exe. Microsoft corporation) c:program fileswindows defendernissrv.exe.