Lets face it, there’s way way too many opinions out there about computer security, if they do you any good, great, if you are confused, then follow these simple steps i believe in.

1. Update your windows, turn on Automatic Updates (http://support.microsoft.com/kb/306525)
2. Install at least an Antivirus product with a basic firewall feature (I personally like Kaspersky Internet Security, http://www.kaspersky.com/kis6)
3. If you are not sure, don’t do it, google it out first, check out what the experts say

There, simple right?