Best Free Antivirus Software 2024 For Windows. Will the best free antivirus really keep you protected from threats? 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 suspicious activity.

Many people swear by windows defender, but others want different protection. Here are our picks for the best free antivirus software to protect your computer.