The basics
- a good anti virus program, I recommend AVG- available from Grisoft (free)
- a good firewall, there is one built into most Windows operation systems
- one or two spyware detectors such as spybot and maybe a few others that you download and run once a month or so
- make sure your Windows operating system has all the latest updates
There are several more detailed threads in this section that will tell you what you need to know and provide the links
I have AVG, asquare, adaware, whatever is built into XP.....
should I get spybot too?