Windows 8 virus scanners were evaluated for the first time by independent testing house AV-Test Institute. The German-based security firm ran its test throughout January and February 2013. Each product was rated with a score from zero to six in the three categories, with a total high score of 18 out of 18. Microsoft’s built-in Windows Defender in Windows 8 was used as the baseline that all others were expected to surpass for consumer level tests. The average score went from 92% in the previous test for Windows 7 to 95% for Windows 8.”]