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.

For antivirus performance, Norton offers strong online protection, while having minimal impact on system resources if you don’t often download ... free protection comes preinstalled on Windows ...

“Microsoft Defender is surprisingly effective for free antivirus software ... out if it’s a good antivirus solution. Since ...

Microsoft Defender is a great free option. It comes pre-installed on all Windows PCs and its malware detection has significantly improved over the last few years. The best antivirus software can ...