Hello a few things I have used so I know they work well are as below.
Avast is a good free antivirus.
https://www.avast.co...ivirus-download
MVP hosts file is great as an added layer this will block a number of know bad things as well as adverts.
http://winhelp2002.mvps.org/hosts.htm
Malwarebytes antimalware This if the full version not free but very good will block bad Ip's in real time as well as malware and has a very good detection rate with malware dare I say it's the best out there so worth the price.
(Edit It can now replace your anti virus version 3.0)
https://www.malwareb...om/antimalware/
For the browser I'd use chrome
https://www.google.c...ktop/index.html
and Avira browser safety as an addon for your browser it will help highlight and block dangerous sites.
https://www.avira.co...-browser-safety
Hope thats a little helpfull.
Edited by HolyCowZ, 12 December 2016 - 02:40 PM.