It detected 100% of the hundreds of malware samples I downloaded to my PC. McAfee’s antivirus scanner checks files against a huge virus database and uses heuristics to identify potentially dangerous files. If you want a good internet security suite with functions that are incredibly simple to use, go with TotalAV. TotalAV is better for speed and ease of use, and it has a better VPN. If you want premium protection for all of your devices at a price that’s lower than many competing brands, go with McAfee. McAfee is better for malware protection, extra features, and pricing.