When purchasing your license, simply select how many Windows PCs you want to protect. During your license period, you can protect any number of Windows up to the total number that your license covers. For example, you could select a 3-PC license to protect up to three different desktops or laptops used in your family.

Kaspersky Anti-Virus  formerly known as AntiViral Toolkit Pro; often referred to as KAV) is a proprietary antivirus program developed by Kaspersky Lab. It is designed to protect users from malware and is primarily designed for computers running Microsoft Windows and macOS, although a version for Linux is available for business consumers

Kaspersky Anti-Virus features include real-time protection, detection and removal of viruses, trojans, worms, spyware, adware, keyloggers, malicious tools and auto-dialers, as well as detection and removal of rootkits.

Microsoft Windows users may download an antivirus rescue disk that scans the host computer during booting inside an isolated Linux environment. In addition, Kaspersky Anti-Virus prevents itself from being disabled by malware without user permission via password access prompts upon disabling protection elements and changing internal settings. It also scans incoming instant messenger traffic, email traffic, automatically disables links to known malware hosting sites while using Internet Explorer or Firefox, and includes free technical support and free product upgrades within paid-subscription periods

Kaspersky Anti-Virus lacks certain features found in Kaspersky Internet Security. These missing features include a personal firewall, HIPS, Secure Keyboard, AntiSpam, AntiBanner and parental control tools.

Also, Kaspersky, like the majority of its competitors, is incompatible with many other anti-virus and anti-spyware software