The top-performing free antivirus program of 2015 is the Panda Free Antivirus 2015, according to PCMag.com. TechRadar.com also gives the program favorable ratings, listing it in its top five antivirus softwares.
CNET download editors rate the Panda Antivirus program at 4.5 out of five. TechRadar found Panda Antivirus to be effective, but slower than some other, less sensitive antivirus programs. A URL filter in the program prevents access to potentially dangerous websites, and a USB drive cleaner helps to guard against USB viruses.
Other high-ranking antivirus programs on PCMag's list of the best free antivirus programs of 2015 include Bitdefender and Malwarebytes, both rated of four out of five.