AV-Comparatives is an independent software testing firm. The latest AV product tests focus on how well they can clean infected systems in removing malware and correcting damages to the registry and overall Windows system.

http://securitywatch.pcmag.com/security-software/330210-pc-infected-which-antivirus-does-the-best-cleanup

FULL DETAILED PDF – AV-Comparatives tests Virus cleaning DEC2014
http://www.av-comparatives.org/wp-content/uploads/2014/12/avc_rem_201411_en.pdf

TABLE SUMMARIZING TEST RESULTS BY VENDOR
http://www.pcmag.com/image_popup/0,1740,iid=441354,00.asp

 

The AV-Comparatives researchers used a fairly simple system to convert these grades in to numeric ratings for comparison. A product that earned a D grade for removal or convenience got zero of 100 possible points. Perfect removal earned 100, 90, or 80 points, depending on whether the convenience grade was A, B, or C. Removal with executables remaining (a B grade) earned 70, 60, or 50 points, again depending on the convenience grade. And so on. Average point totals for the products tested ranged from AhnLab’s low of 68 to a high score of 88, shared by AVG and Bitdefender. Panda and Kaspersky came close, with 87 and 86 points respectively