Most of my non-geek friends like to ask me about security. I tell them that unless they look at a lot of porn or spend time downloading pirated software, then they don’t need to worry as much. It’s not that big a deal.
Microsoft once had Windows Live OneCare. I hated the beta version, and installed it after less than 15 minutes. As it matured, I found it to be very useful, and I would recommend it to friends who asked what I though. I’ve long since had it with Norton and McAfee, although I’ve heard since they days that they gave me a bad taste that they’ve optimized their products so they don’t require as much time and attention, as well as system resources. I’m still not ready to pay for either again.
While Windows Live OneCare was a paid product, Microsoft now has Microsoft Security Essentials, which is free. Lifehaker says it works well enough that Windows users shouldn’t have to shell out money for other security products.