Common Sense Antivirus 2017 August 01 Patch
If I am very honest here, before any further recommendations, I have to point out one thing. No antivirus software will protect you 100% no matter what. You need to be aware of what you are browsing, which files you are downloading, from which sources and what are you doing on the internet in general, otherwise no matter the security, it might not be enough. And now, onwards to biased answer.
You need 3 layers of security: Antivirus, Anti-malware, and in-browser.
Antivirus to protect you from initial infections, trojans and similar issues, anti-malware to protect you from deep threats and various forms of malware, in-browser to reduce the risk of getting infected. From each category as follows
These might contain full package (including anti-malware) and not full package solutions. My favorites go to Kaspersky (Is going to have a free version soon, excited), Bit Defender, Comodo, Avira, Avast and Norton. Or the best of all, Windows natively has Windows Defender which has proven to be very formidable, comes with Windows 10 and uses the least amount of resources, so if you have that, use it. I know it is a lot of choices to make, but each company does one or another slightly better, I would recommend doing research on which you chose, but I honestly wouldn't bother and just use Windows Defender.
Malwarebytes, Hitman Pro, AdwCleaner and may be Zemana. If you are running free versions of these, it won't clash with any antivirus. You will need to do fairly regular scans, and I would recommend having AdwCleaner by hand so that you can do multiple scans. Multiple anti-malware solutions will ensure that you are safe from that form of threat.
The longest list goes to this category: uBlock. All you need is uBlock. Just make sure you support your favorite websites as you won't be seeing any ads anytime soon. (Protects you from ad-spread malware)