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The best antivirus software for Windows Home User

AV-TEST Product Review and Certification Report – Jul-Aug/2013
avast!
Version 8.0
Platform Windows 7 (SP1, 64 bit)
Report 133160
Date Jul-Aug/2013
avast!

Free AntiVirus

During July and August 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

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

July August Industry average
Protection against 0-day malware attacks, inclusive of web and e-mail threats (Real-World Testing)
125 samples used
100% 98% 91%
Detection of widespread and prevalent malware discovered in the last 4 weeks (the AV-TEST reference set)
19,581 samples used
100% 100% 97%
Protection Score
5.5/6.0

Performance

Average influence of the product on computer speed in daily usage

July August Industry average
Use cases: visiting websites, downloading software, installing and running programs and copying data
5 samples used
7s 4s
Performance Score
3.0/6.0

Usability

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

July August 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
731,305 samples used
1 0 7
False warnings concerning certain actions carried out whilst installing and using legitimate software
32 samples used
0 1
False blockages of certain actions carried out whilst installing and using legitimate software
32 samples used
0 1
Usability Score
6.0/6.0