When a new or updated antivirus comes out, commercial or free, we put the app through our real-world tests. We’ve evaluated a range of free antivirus solutions to help you pick the best one.

You don't have to pay extra, though. We’ve tested and ranked the best free antivirus apps. When the IBM PC was new, I served as the president of the San Francisco PC User Group for three years.

As new antivirus releases appear, we challenge them with real-world tests using actual ransomware and other types of malware, and we report ... free antivirus—our list here includes the best ...