Principal AntiVirus is powerful antivirus software which protects your Windows computer against a large range of threats including viruses, worms, trojans, backdoors, adware, spyware and other malware. It is designed to offer you principal protection against currently known as well as future viruses and malware without the need for regular updates or signature scanners. It intercepts threats before they become active without constantly having to check all incoming and outgoing data against known virus footprints.

The way the program works is by scrutinizing dangerous programs that start for the first time. Before a dangerous program causes damage to your computer, it will block it and tell you how bad is the program you are running and gives you advice. On request, you will receive a detailed motivation why a running program is thought to be a virus, worm, trojan, backdoor or other malware. If you are deliberately running some dangerous program you tell Principal AntiVirus to trust it forever.