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.

Bitdefender has long been one of the most popular antivirus tools, protecting more than 500 million users around the globe. In recent years, Bitdefender launched additional security tools to protect ...

Bitdefender provides continuous real-time protection to ensure your personal information stays safe. With scheduled background scanning, you can trust this software to stave off scams and keep both ...

I found Bitdefender's safety tools to be comprehensive, intuitive and highly efficient, earning it our 2025 Editors' Choice award for best antivirus. Bitdefender antivirus features Bitdefender’s core ...