Install all windows vital updates for your windows from the Microsoft Update site All that's wanted to keep your Microsoft windows update is an Internet connection.

Install and set up a firewall either a hardware or software based firewall If you are using a router, it likely has firewall capabilities included. Software firewalls are available at minimum cost.

Install and set up antivirus software there are even free editions have the security is invaluable Update the definition files everyday scan your drive weekly it can all be automated with most programs.

Make a backup still the best plan can be parried be organized for the worst with a total backup of your hard drive If you already have a CD burner and software installed in your machine, you likely have the tools to create a complete system backup .