Viruses are a common issue on computer systems, especially at home. Without virus protection your computer is at risk, however virus scanning software can protect and prevent your computer from being infected.

Once a virus has infected your computer you may notice that you are no longer able to access certain data, the virus may also start writing messages on your screen or can even prevent your computer from starting up. The consequence of this is that all your information on your hard disk may be lost . Another effect of being infected is having your computer sending thousands of spam emails from your equipment without your knowledge.