How to keep your computer clean, healthy and virus-free.

What is a firewall?

A clear definition of this much-used term.

What is antivirus?

A free program that will protect your computer against malicious software.

How to test a firewall

A firewall should protect your computer from invasion. Here’s how to find out if yours is working.

Antivirus: how to get virus protection

A step-by-step guide to getting protected.

What is malware?

Quick and must-read definition of this dangerous term...

What is a virus?

When we talk about viruses in relation to computers and the internet, we mean a program that can create a copy of itself and spread to other connec