Norton has become less of a process hog over the years and that is why I have gone back to using their products. I have used them in the past and am now using it. I have never had a virus on my computer using Norton products. I would also like to point out that it doesn't matter what year you have as long as you have a valid product key you can update to the latest version and your product key will work. I highly recommend Norton products for worry free protection on any and all computers!!!