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.

Add Yahoo as a preferred source to see more of our stories on Google. Both Avast and Bitdefender originally built their reputations on their high-quality, free solutions. Even though they've both ...

Bitdefender vs. Malwarebytes: Which Antivirus Offers Better Protection? Malwarebytes is best known for its free malware cleanup tool, but its full-featured antivirus software is also worth considering ...

Bitdefender is known for strong, lightweight protection. This review examines how its free and paid plans perform in daily use, from Wi-Fi to work files.

Having some sort of antimalware protection is a must on Windows PCs, but if you're trying to pick between Bitdefender and McAfee, Consumer Reports may help.