AV-TEST Product Review Report – Jan-Feb/2013

During January and February 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.

Windows Defender

Version	4.0
Platform	Windows 8 (RTM, 64 bit)
Report	130597
Date	Jan-Feb/2013

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Protection

Protection against malware infections
(such as viruses, worms or Trojan horses)
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	Industry average	January	February
Protection against 0-day malware attacks, inclusive of web and e-mail threats (Real-World Testing) 125 samples used	95%	82.0%	81.0%
Detection of widespread and prevalent malware discovered in the last 4 weeks (the AV-TEST reference set) 18,267 samples used	99%	98.0%	99.0%
Protection Score	2.0/6.0

Performance

Average influence of the product on computer speed in daily usage
More information

	Industry average	January	February
Use cases: visiting websites, downloading software, installing and running programs and copying data Number of test cases: 5	5%	6s
Performance Score	3.5/6.0

Usability

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

	Industry average	January	February
False warnings or blockages when visiting websites 500 samples used	0	0	0
False detections of legitimate software as malware during a system scan 602,784 samples used	6	0	0
False warnings concerning certain actions carried out whilst installing and using legitimate software 35 samples used	1	0
False blockages of certain actions carried out whilst installing and using legitimate software 35 samples used	1	0
Usability Score	6.0/6.0