Reddit Best Free Antivirus 2025 Review. My pick for the best free antivirus software overall is avg antivirus free, which scans for viruses and malware, quarantines unwanted programs, and alerts you to any. Reddit recommends norton 360 as the best antivirus for your devices.

Built into windows 10 and 11, microsoft defender is the one of the most consistently reliable antivirus suites around. Bitdefender free, avast, or windows defender are generally the main good free ones.