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The best antivirus software for Windows Home User

Download as PDF AV-TEST Product Review and Certification Report – May-Jun/2013
Version 2013
Platform Windows 7 (SP1, 32 bit)
Report 132371
Date May-Jun/2013

Norton Internet Security

During May and June 2013 we continuously evaluated 26 home user security products using their default settings. We always used the most current publicly-available version of all products for the testing. They were allowed to update themselves at any time and query their in-the-cloud services. We focused on realistic test scenarios and challenged the products against real-world threats. Products had to demonstrate their capabilities using all components and protection layers.


Protection against malware infections
(such as viruses, worms or Trojan horses)

May June Industry average
Protection against 0-day malware attacks, inclusive of web and e-mail threats (Real-World Testing)
132 samples used
100% 97% 92%
Detection of widespread and prevalent malware discovered in the last 4 weeks (the AV-TEST reference set)
19,741 samples used
99% 100% 98%
Protection Score


Average influence of the product on computer speed in daily usage

May June Industry average
Use cases: visiting websites, downloading software, installing and running programs and copying data
5 samples used
7s 6s
Performance Score


Impact of the security software on the usability of the whole computer
(lower values indicate better results)

May June Industry average
False warnings or blockages when visiting websites
500 samples used
0 0 0
False detections of legitimate software as malware during a system scan
718,621 samples used
1 2 12
False warnings concerning certain actions carried out whilst installing and using legitimate software
36 samples used
0 1
False blockages of certain actions carried out whilst installing and using legitimate software
36 samples used
0 1
Usability Score