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Download our best protection
avast! Internet Security

Secure your PC and yourself with our most-sophisticated all-in-one protection.

Looking for our free antivirus?

Our 2012 Free Mac Antivirus
is here!

Streamlined. Light. Free.
Antivirus engine used by over 150 million.

Tough business climates need
reliable and efficient protection

Same great antivirus, but designed for business
Sharepoint and Exchange server support
Web-based management
One convenient package

Protect your business easily, with antivirus trusted by over 150 million users.

Choose your level of protection

avast! Free Antivirus

avast! Pro Antivirus

avast! Internet Security

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For Business

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Community

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Main navigation

Sub navigation

Download our best protectionavast! Internet Security

Secure your PC and yourself with our most-sophisticated all-in-one protection.

Looking for our free antivirus?

Our 2012 Free Mac Antivirusis here!

Streamlined. Light. Free.Antivirus engine used by over 150 million.

Tough business climates needreliable and efficient protection

Same great antivirus, but designed for business Sharepoint and Exchange server support Web-based management One convenient package Protect your business easily, with antivirus trusted by over 150 million users.

Choose your level of protection

avast! Free Antivirus

avast! Pro Antivirus

avast! Internet Security

For Home

For Business

Support

Community

About Us

Download our best protection
avast! Internet Security

Our 2012 Free Mac Antivirus
is here!

Streamlined. Light. Free.
Antivirus engine used by over 150 million.

Tough business climates need
reliable and efficient protection

Same great antivirus, but designed for business
Sharepoint and Exchange server support
Web-based management
One convenient package

Protect your business easily, with antivirus trusted by over 150 million users.