Its features include:

• Anti-spyware built-in
• Web Shield
• Anti-rootkit built-in
• Automatic updates
• Strong self-protection
• Virus Chest
• Antivirus kernel
• System integration
• Simple User Interface
• Integrated Virus Cleaner
• Resident protection
• Support for 64-bit Windows
• P2P and IM Shields
• Internationalization
• Network Shield

Operating Systems Supported:

• Windows 8 (any edition, 32-bit or 64-bit)
• Windows 7 (any edition, 32-bit or 64-bit)
• Windows Vista (any edition, 32-bit or 64-bit, excl. Starter Edition)
• Windows XP Service Pack 2 or higher (any edition, 32-bit or 64-bit)
• Microsoft Windows 2000 Professional Service Pack 4 (only avast! Free Antivirus and avast! Pro Antivirus)

Minimum Hardware Requirements:

• Pentium 3 Processor
• 128 MB RAM
• 650 MB of free hard disk space

- Please note that some features are not supported on Win 2000: (Auto)Sandbox, FileRep, SafeZone, Remote Assistance, avast! Account. 
- Older Windows operating systems (Windows 95/98/ME/NT) are not supported.

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