I Am Using Free Version Of Avira Since 2012. Simple Interface, Fast, Scan Process Runs Smoothly, Easy Updates. Free Edition Includes May Features Like Anti-Virus Protection, Anti-Dialer Protection, Anti-Rootkit Protection, Anti-Phishing Protection, Netbook Support And So Many Others.
Its Cloud Based Antivirus. Not So Popular, But User Feed-Backs Are Really Good. Fast, Light Weighted. Provides Maximum Protection Against Viruses Thanks To PandaLabs Servers And Cloud Scanning.
Famous Antivirus In Market. Free Edition Includes Features Like Simple User Interface, Network Shield, Virus Chest, P2P And MI Shields.
My Experience Is Really Bad, Even Same Opinion Of My Friends. i Don't Recommend. Free Edition Includes Same Features Like Other Antivirus.
Only Free Version, Open Source Antivirus. Only Available For Microsoft Operating Systems 98/Me/2000/XP/2003 And Vista. Just Try It As Completely Free And Open Source Version.