Norton Antivirus is most probably the world's most trusted antivirus software. Norton AntiVirus wards off a host of internet threats. Whether its surfing or chatting, emailing or file swapping, Norton AntiVirus is constantly at work in the background, automatically detecting and removing viruses, Trojan horses, and worms. It also rids your computer of unwanted spyware, adware, and other monitoring software. As with McAfee, Norton antivirus is a good choice, but can slow down your computer system if you have an older computer.

McAfee VirusScan is up there with Norton in terms of popularity. It has proven security that protects against viruses and spyware, McAfee VirusScan detects, blocks, and removes viruses and spyware, that may result in the loss of your irreplaceable documents, such as digital photos, family movies, and financial spreadsheets, identity theft and slower PC performance. The one main thing we don't like about the "Stand Alone" VirusScan is that it has the control centre which tries to get you to purchase their other products.

Aimed more at experienced users, Kaspersky AntiVirus combines flexible anti-virus protection with a number of valuable extras. It is a modular system, configured and managed through an application called the Control Centre. The core modules are the monitor, which runs in the background to detect viruses as they arrive, and the scanner, which scans the computer's memory and drives on request.

Tough on viruses, easy on users, AVG Anti-Virus software is reliable, easy to install, use and update. It does not impact the performance of your system, like Norton or McAfee can do, and is excellent value for money. If you have trouble getting to grips with software then AVG Antivirus is perfect. This is one of the easiest antivirus packages to install, with a very good, and easy to understand "Control Panel".

eTrust Antivirus is an award-winning antivirus solution that provides complete protection, detection and elimination of thousands of computer viruses, worms and Trojan horse programs for home and home office PCs. The easy-to-use interface and frequent automatic updates make it effortless to stay protected, and the small installation file does not strain PC system resources.