Download Avast antivirus and anti-spyware protection for your PC, Mac and . to give you the best protection that's easy to use and won. Avast Free Antivirus latest version: A free antivirus program you may use on your . A lighter program that is more efficient; It doesn't slow your computer Download Avast Free Antivirus on your Windows, Android, and Mac. . easy password management and home network security that won.