Antiviruses

A computer virus is a harmful computer program which will damage files or your computer, and which is able to duplicate and spread itself within a computer or computer network. Usually the computer virus is hidden within a program, file or document.

Antivirus are computer programs that attempt to identify, neutralize or eliminate malicious software. Anti-virus is so named because the earliest examples were designed exclusively to combat computer viruses; however most modern antivirus software is now designed to combat a wide range of threats, including worms, phishing attacks, rootkits, trojan horses and other malware.

Antivirus scans files or your computer's memory for certain patterns that may indicate an infection. The patterns it looks for are based on the signatures, or definitions, of known viruses. Virus authors are continually releasing new and updated viruses, so it is important that you have the latest definitions installed on your computer.

Avast! Home Edition is a full-featured antivirus package for non-commercial, home users.

AVG Anti-Virus Free — antivirus and antispyware protection for Windows available to download for free.

Avira AntiVir Personal is a free antivirus solution, that constantly and rapidly scans your computer for malicious programs.