There are many things that can go wrong with your PC, but catching a virus is one of the worst. Viruses have a simple goal - to get onto your computer, replicate themselves and infect other computers.

Because the internet has linked so many computers together, viruses can spread from computer to computer, and country to country, at the speed of light. But you can stop them in their tracks with the use of anti-virus software.

Many PCs come with anti-virus software already installed. Even so, you should make sure that it has the right features to meet your needs. If you've had your program for a while now, it might be time to consider upgrading.

If you haven't got any virus protection at the moment, then get some, now. We can't stress this enough - there could be a virus winging its destructive way to your machine right now, and if it hits, you could end up with significantly more damage to your valuable machine than the price of some anti-virus software. Are you really willing to take that risk?