Brand new PC build, what antivirus do I need?

[ai8den]

This is the build that I'm going to use primarily for gaming/entertainment. I plan on using my tablet for random internet use but still want to cover myself in case I have to/someone else goes to "unapproved" sites. I don't know if you need the build but here it is just in case: http/pcpartpicker.com/p/N3gQpg

 

[TayyabKhld]

This is the build that I'm going to use primarily for gaming/entertainment. I plan on using my tablet for random internet use but still want to cover myself in case I have to/someone else goes to "unapproved" sites. I don't know if you need the build but here it is just in case: http/pcpartpicker.com/p/N3gQpg

Nice build. I would recommend you Bitdefender antivirus its running in background and you barley notice it, but trust me its super effective and I have had none virus at all after using it for a while and best of all its free!