Avast Antivirus System Requirements
Operating System Supported
Windows 7 (any Edition, 32-bit or 64-bit)
Windows Vista (any Edition excl. Starter Edition, 32-bit or 64-bit)
Windows XP Service Pack 2 or higher (any Edition, 32-bit or 64-bit)
Microsoft Windows 2000 Professional Service Pack 4 (incompatible with avast! Account)
Minimum Hardware Requirements
Pentium 3 Processor
128 MB RAM
200 MB of free hard disk space
For best results, remove any other antivirus software from your PC before installing avast!
