Now a Days Avast is growing fast and proved as best antivirus.Total 184,868,068 registration completed over the world and keep growing. Avast won't slowdown your Computer. Here below is the avast6 features, system requirements and direct download links. This edition is FREE OF CHARGE for non-commercial and home users.
Features:
Anti-spyware built-in
Web Shield
Anti-rootkit built-in