avast! Professional Edition - System Requirements

Please note: hardware configurations described below represent the minimum recommended system specification for that operating system.

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For a computer running Windows® 95/98/Me:
486 Processor, 32MB RAM and 100MB of free hard disk space.

For a computer running Windows® NT® 4.0:
486 Processor, 24MB RAM and 100MB of free hard disk space and Service Pack 3 (or higher) installed

For a computer running Windows® 2000/XP® Workstation (Not Server):
Pentium class Processor, 64MB RAM (128MB recommended) and 100MB of free hard disk space

For a computer running Windows® XP® 64-bit Edition:
An AMD Athlon64, Opteron or Intel EM64T-enabled Pentium 4 / Xeon processor, 128MB RAM (256MB recommended) and 100MB of free hard disk space

For a computer running Windows® Vista:
Pentium 4 processor, 512MB RAM and 100MB of free hard disk space

The program itself requires about 60MB of hard disk space; the remainder of the recommended space is reserved for the virus recovery database file and its index (VRDB, also known as the "integrity database" from the previous version).

A functional MS Internet Explorer 4 or higher is required for the program to work.

This product cannot be installed on a server operating system (Windows NT/2000/2003 Server families).

avast! 4 Professional

Features at a glance Technical features System Requirements Download Installation guide Adobe Acrobat (PDF) Document

User guide Adobe Acrobat (PDF) Document

Data sheet Adobe Acrobat (PDF) Document

Pricelist Purchase Revision History Compare with Home Edition Skins VPS Updates Support Translations Awards What's new in v4.8

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Awards - Professional Edition

Virus Bulletin 100 award - August 2008August, 2008 - this month's Virus Bulletin tests focused on Windows XP Service Pack 3. Once again, avast! 4 Professional Edition detected all In-The-Wild viruses (i.e. viruses known to be spreading between users), as well as over 97% of Trojans with no false positives as a result of which we have added yet another VB100 award to our tally!

100% Virus Bulletin award: Windows Vista X64 Business Edition platformavast! 4 Professional Edition 4.7.1015 has achieved a VB100 award in the latest Virus Bulletin comparative review on Windows Vista X64 Business Edition platform.

100% Virus Bulletin award: Windows VistaFebruary, 2007 - In the latest Virus Bulletin tests (February 2007, Windows Vista) avast! 4 Professional Edition again detected all ItW viruses (i.e. viruses known to be 'in the wild') and was given another VB100% award!