The various tools offer much the same as one another.
What's just as key is to keep an eye on software update, the massive Microsoft updates sometimes fail, so worth checking in particular before interacting with a sensitive website.
Take care opening email, watch for typos in emails suggesting phishing and if your friend suddenly asks you something odd out of the blue, SMS them and ask whether it was legit.
Finally, when googling stuff, take care of your choice of website to visit. Avoid anything .ru and perhaps most from .cn too. E.g. if looking up financial advice, look for hits from recognised websites like Martinlewis, perhaps mumsnet or which.
In other words, take care with the internet and dont rely solely on anti-virus
Cheers