Both Avast and Bitdefender originally built their reputations on their high-quality, free solutions. Even though they've both grown into professional-grade security companies, they still offer ...

Bitdefender Antivirus Free scans and cleans your system using only the resources that you, your software or your operating system are not using, thus achieving near-zero impact on your activities.

Bitdefender Antivirus Free scans and cleans your system using only the resources that you, your software or your operating system are not using, thus achieving near-zero impact on your activities.

Antivirus apps protect your PC's personal information, data, bank accounts, and other sensitive information. We've tested more than two dozen utilities to help you choose the right antivirus for your ...

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 ...

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.