BitDefender, Kaspersky and McAfee are highly rated anti-virus programs. Bitdefender and Kaspersky run on Windows operating systems, while purchasing a subscription to McAfee brings protection to Windows, Mac, Android and iOS devices. Most anti-virus programs are updated yearly with new features, and thus the ratings for anti-virus programs change from time to time.
BitDefender anti-virus includes several features that are not strictly related to viruses but work to protect a computer. BitDefender detects malicious websites before they are loaded in a browser, helping to prevent possible phishing attacks or virus downloads. It also offers an alternate boot environment to help clean out exceptionally difficult malware installed on a system.
Kaspersky anti-virus offers advanced phishing protection in addition to anti-virus capabilities. It also offers the ability to control it remotely, so that scans may be run on a computer without the user having to be present at the machine.
McAfee's anti-virus software offers standard virus and malware protection for Windows, but its subscription service comes with an additional set of benefits and provides protection for Mac OS X, Android and iOS devices, in addition to Windows. This comprehensive protection is great for users that want multiple devices protected by a single service.