Any and all computers should have an anti-virus program of some description. There are so many programs on the market that it can be difficult to choose, but! without any anti-virus software installed; you stand a greater risk of loosing the data and even your identity.
Computer viruses are unwanted computer programs that can invade your hard drive and cause many different types of damage. Usually viruses are created when someone writes a computer program and embeds harmful software within that program. As soon as other people begin downloading that infected program onto their computers, the virus finds it’s way in and negatively alters information stored in the computers.