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 GravityZone is best overall when it comes to our top choices for protection from malware like viruses, spyware, trojans, and bots. All Windows devices need to be protected from malware ...

ZDNET experts put every product through rigorous testing and research to curate the best options for you. If you buy through our links, we may earn a commission. Learn Our Process 'ZDNET Recommends': ...