Anyway this whole "maintain windows" crap is so tiring. Really. Just install AV and forget about it.
In order to facilitate such an environment, the pc has to be locked down. Don't run as admin, don't let users install software, so on and so forth.
While this works in corporate, at home it doesn't work so well. My parents kept getting viruses/trojans despite McAfee due to their naiveté as users.
Oooo a eCard for my birthday! Trying to explain the dangers just made them uber paranoid of email, web sites, everything on the computer. They found it very stressful.
My next stage was to, of course, create user accounts and not give them the admin password. I installed all software on request and figured this would take care of it.
There was a bug with the virusscan at the time so it didn't fully work as non-admin. Specifically with email, the one thing my mother had the most problems with.
Also, my dad's games would not run as a normal user....popular
microsoft made games. Yes, I set run as admin and so on.
There were other issues that popped up. Like dropping internet connections and not picking them back up on its own, there was a corrupted registry once. Other things. When I lived nearby it wasn't so bad, 5-10m to troubleshoot and get them back up and running. But when I moved away, it felt like a never ending stream of support calls that were incredibly difficult to walk them through the fixes for.
So I got them a mac. Being new to computers in general they fought me, but I did it anyway. Told them I'd never answer a support call again if they didn't do it. After the first couple of weeks of questions like "how do I get to my email? How do I access the web?...ohhh safari, that's like IE", I have only received a single phone call in 2 years. It went something like:
"Thank you sooo much for making us switch to a mac. I can't believe how easy it is to use and since I haven't been stressed over just touching the thing I've taken the time to learn the iApps, MySpace, blah blah blah"
My father picked up web development, flash, html, and adobe apps.
Sure they could have done this on windows, but using windows was like taxes to them: a necessary evil. While osx is not like using anything. It's just there. It does what it does. So they actually took the time to learn some of the things that make computers interesting.