Antivirus

Kaspersky Security Cloud Free combines excellent malware protection, plenty of extra features and a very light system-performance impact.

Kaspersky's Windows antivirus lineup offers close to complete coverage without slowing down your computer much, although the least expensive program doesn't offer many extra features.

Trend Micro Antivirus for Mac offers flawless malware protection but does little to stand out from the crowd.

Intego Mac Internet Security X9 shines brightly in a couple of areas, but it ultimately doesn't compare to the best Mac antivirus apps.

Avast Free Antivirus offers a ton of features for a free antivirus program but has mediocre malware protection and a heavy system load.

AVG AntiVirus Free is beaten in features by its more glamorous sibling Avast Free Antivirus and beaten in malware protection by everything else.

Windows Defender isn't the absolute best antivirus software, but it's easily good enough to be your main malware defense.