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.

As well as a solid reputation for protecting computers from viruses and malware, Avast offers a wide range of useful related tools. These include password protection, data shredder, webcam shield, ...

Editorial Note: Forbes Advisor may earn a commission on sales made from partner links on this page, but that doesn't affect our editors' opinions or evaluations. Avast has an excellent reputation for ...