A virus is a computer program that has been made to copy itself and infect a computer without the owner knowing. A real and true is one that can only spread to a computer when the host is taken to the computer. This can be done by the use of a floppy disk, CD, or USB drive. When networking is in effect, your chances of getting a virus are increased because your files are available to others. Many people think that computer worms and Trojan horses are viruses but they are technically different.

Trojan horses are especially dangerous because they act like harmless programs but are secretly infecting your computer. The internet has now made viruses even more dangerous because they can be waiting in emails or on websites. antivirus software is software that a user can download onto their computers to help detect and remove viruses from their computers. The software has two functions and the first of those is to detect viruses by using a list of known virus signature definitions. The software will scan your entire computer, or you can set it to scan just a part, to see if it can detect any of these known definitions on your computer. The only function of the software is to remove the virus from your computer. Many antivirus software programs now offer scanning of emails to help and prevent the passing of viruses from opening a potentially harmful attachment.

In the past few years, antivirus software has become widely available and has a wide range of prices. It is important to find an antivirus software that is within your budget so that your computer is protected from invaders. As the internet is getting more and more popular, it had never been more important than to have antivirus software installed on your computer. Viruses are finding more genius ways of finding their ways into your computer system. This is why having a good software program is important and taking basic steps to protect you and the information that is on your computer.