Since getting Windows 10 this year, the Dell came with a trial of McAfee LiveSafe - trial expired, I did not subscribe but it's running (so not updated, I guess.) But still, on the rare occasion, asks me if I really want to visit a website, so I don't.
McAfee WebAdvisor icon is visible on the top browser bar.
Windows Defender is up to date and active, Windows firewall on.
I run Malwarebytes (free) once a month.
Same with Glary Utilities, more as a clean up and maintenance, but it does have a malware scan.
Cable internet service goes to cable modem, then to an older Belkin router for WiFi (secured, it says) just for access to the Roku, and my family/friends phones, should they need it atm.
No network to speak of, only one computer user in the house.
Also occasionally visit Steve Gibson's (possibly the most paranoid guy on the web)
GRC site and run/installed the free things. That might all be out date stuff now though, some stuff won't work with Win 10.
Firefox, AdBlock Plus (free), and I let Windows Update just do it's thing on auto.
Dell updates too.
No probs so far.