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.

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.

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.