With the rise of viruses that come through the internet on a daily basis, if you have a lot of information on your computer that you would not want to lose, then purchasing one of the many imaging programs that are available on the internet is a very good idea. These programs copy your computer hard drive onto a media disc or onto a network exactly so that if anything would happen to your computer such as a virus that you can not get rid of or a computer crash that you were not counting on, you would still have all of the information that was on your computer.