AV-TEST Product Review and Certification Report – May-Jun/2018

During May and June 2018 we continuously evaluated 18 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	4.12
Platform	Windows 10 (64 bit)
Report	182247
Date	May-Jun/2018

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Protection

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

	Industry average	May	June
Protection against 0-day malware attacks, inclusive of web and e-mail threats (Real-World Testing) 225 samples used	99.6%	100%	100%
Detection of widespread and prevalent malware discovered in the last 4 weeks (the AV-TEST reference set) 5,565 samples used	100%	100%	100%
Protection Score	6.0/6.0

Performance

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

	Industry average	Standard PC	Industry average	High end PC
Slowing-down when launching popular websites 40 websites visited	16%	10%	13%	11%
Slower download of frequently-used applications 20 downloaded files	1%	0%	1%	0%
Slower launch of standard software applications 12 test cases applied	11%	7%	10%	11%
Slower installation of frequently-used applications 20 installed applications	23%	41%	20%	35%
Slower copying of files, locally and in a network 5,195 files copied	4%	1%	6%	3%
Performance Score	5.5/6.0

Usability

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

	Industry average	May	June
False warnings or blockages when visiting websites 500 samples used	0	0	0
False detections of legitimate software as malware during a system scan 1,666,880 samples used	11	1	0
False warnings concerning certain actions carried out whilst installing and using legitimate software 41 samples used	0	0
False blockages of certain actions carried out whilst installing and using legitimate software 41 samples used	0	1
Usability Score	6.0/6.0