Hello
@soggykitten, do you use Windows 10? If so, Windows Defender ( which is included was part of that OS), is pretty good, except with the very newest infections.
We use McAfee Corporate software at my office, but we are directly targeted by hackers because of the nature and the size of the business. For home and small business use however (when someone is not being targeted directly) I think Windows Defender is an excellent choice, for price (of course, it's free
), and because it has no footprint to speak of (IOW, it does not rob your computer of its resources like the bigger programs do, McAfee, Norton, etc.).
You might Google "best antivirus programs" and "best free antivirus programs" and see some comparisons for youself. Interestingly, some a couple of the free programs were as good or better than ones that you pay for (or they were a year or so ago, the last time I looked).
~Deut