PROS / Norton earned perfect protection scores for the latest Windows operating systems from AV-Test.CONS / This program causes your computer to slow slightly while it is running. VERDICT / Norton Security consistently ranks high for detection and blocking of malware threats, and its additional tools and features ensure all-around strong internet security.
Editor’s Note: Top Ten Reviews uses test results from the independent laboratory AV-Test as part of our review process for the best antivirus software. AV-Test looks specifically at protection, performance and usability on multiple versions of Windows operating systems, and it performs these evaluations several times throughout the year. We use the most current AV-Test scores available at the time of our review. It is possible that new AV-Test scores will be released after our review goes live on the site. We will consider these scores during our next review of the best antivirus software.When AV-Test ran a series of tests on 22 antivirus products during March and April of 2016, Norton produced terrific results on Windows 10. While the testers visited websites and downloaded software, Norton delayed the host computer by one second, which is two seconds less than the industry average. Furthermore, it produced perfect scores in the protection test section. Many competitors with faster performance did not match Norton’s perfect scores against malware attacks. These are only a couple reasons Norton Security Standard is our Top Ten Reviews Bronze Award for best antivirus software.