has ESET NOD32 Antivirus 2018 Software (3-PCs) for $79.99 - $55 w/ promo code EMCBCRK29 = $24.99.
Great deal for those who missed the $15 for three PCs a month ago.
ESET is easily the best anti-virus I have ever used in my life. As a "computer guy", most of the time when someone has me look at their machine/computer/laptop to figure out what's making it running so slow, it's usually an antivirus like McAfee or Norton being a resource hog.
Don't ask me the technical details, I just know what I know, other users can chime in on their experiences.