Today, more than 75% of reported virus infections result from Boot Viruses. Common File viruses spread when you run an infected computer program or application, for instance running a .exe file. By contrast, Boot viruses spread when you boot-up from an infected floppy or copy files from an infected disk, for example, downloading an infected file from a BBS or on-line service. They propagate by replacing critical files in the boot up program with infected files, during the boot-up process. Growing invasions of sophisticated boot viruses like FORM, Michelangelo, Stoned and others, make it more likely than ever for anyone's PC to be seriously disrupted by a computer virus infection... even with the leading anti-virus software installed. The Virus Trap, designed and manufactured in the USA, offers the latest in complementary boot virus detection and prevention from the market leader in virus detection and prevention, McAfee Associates.