TIRED OF VIRUS!!!!! What is the best low price defence :(?

[SurfUp]

You need to make sure the Router security is setup correctly, windows is updated and then security starts with a quality web browser like Google Chrome with an ad-block extension. No anti virus paid or free will do much if the above things are not in first. An anti virus is just one layer of security and not a cure-all. If you need to spend money go with Malwarebytes Paid, after the 15 day trial and run it alongside any free anti virus you are comfortable using, Microsoft Security Essentials is good and easy to use. And just use the windows own firewall, because 3rd party firewalls usually cause trouble of their own.