Windows Defender Is the Best Windows 10 Antivirus

[erp-ster0]

I'm not sure about Kaspersky free as I've not tried it yet its kind of new. I've not used a free anti-virus since 2014 expect for Windows defender when i 1st installed windows tell i got around to disabling it. 

well one of my late aunts bought the full version of kaspersky internet security suite (not the free version) a few years ago and it protected her win7 machine pretty well, maybe even better than the ms security essentials app for win7

note that the win7 version of defender is not the same as the win10 version as W7's defender was only anti-spyware (weak) but the W10 version of defender is nearly a full antivirus app