Microsoft Defender isn't bad, but it's not enough to fully protect your PC. You don't have to pay extra, though—just use one of the top free antivirus apps we've tested.

Protect your computer with effective antivirus protection and smart computer security strategies to prevent hacking, malware, and viruses for safer online experiences. Pixabay, TheDigitalArtist ...

You need antivirus software. Attacks on your PC keep getting more sophisticated, thanks to the help of AI. Even the tech-savvy and cautious can get tricked into exposing themselves to malware, spyware ...

We may receive a commission on purchases made from links. Today more than ever, it is of the utmost importance that you have one or more security apps protecting your computer's sensitive inner ...

Antivirus software is necessary to install on a computer as it offers protection against several threats that can harm a computer. Windows 11/10 computers come with a built-in free antivirus software, ...

We've tested and reviewed both free and paid-for antivirus software. We bombarded each one with tens of thousands of threats to see how well it can cope against viruses, ransomware and phishing ...

When the IBM PC was new, I served as the president of the San Francisco PC User Group for three years. That’s how I met PCMag’s editorial team, who brought me on board in 1986. In the years since that ...

Avast antivirus slowing down computer or internet speed has been a major concern for many users. Avast is one of the top security services that provides a high-end level of protection against malware ...

When it’s time to upgrade to a new computer, the excitement can be overshadowed by the concern of transferring existing data without bringing along any unwanted viruses or malware. Philip from Troy, ...