[FreakLegion]

I'll second the recommendation for Windows Defender, based on how well it blocks the bad stuff. But to be clear, 1) Windows Defender isn't any more secure than other AVs, e.g. [1], and 2) the risk from AVs is negligible and far outweighed by the benefit, for the average user.

1. https://arstechnica.com/information-technology/2017/05/windo...

[megaman22]

Windows Defender is at least unobtrusive. Got hit with a cryptolocker last year, and then mandated usage of some garbage WebRoot product that brings a quad-core i7, 32gb RAM and SSD workstation to its knees. Not sure which was worse...