Windows

If you're using Microsoft Windows, there are 3 recommended steps to take other then installing another Operating system.

1. Install a Firewall. This will close all your ports from being accessible from the public internet.
2. Install antivirus software. Make sure you are getting the latest virus definitions (information about the latest viruses) with your configuration. This is important, as new viruses are released daily.
3. Install another browser like Mozilla Firefox or Opera as Internet Explorer has a long history of security incidents.