New avast! Internet Security 5.0: get the best for ½ the price

We hope you have enjoyed the use of our free antivirus. Please do feel free to continue using our new Free 5.0 Antivirus. But, if you shop online and want to protect your identity, we recommend you upgrade to our new Internet Security. To make this even more affordable, we are providing our loyal users with a special 50% discount.

	Stay with Free Antivirus	Upgrade to Internet Security
Antivirus with anti-spyware The minimum protection for every PC.
Sandbox for risk-free web surfing The innovative avast! Sandbox protects you from dangerous websites and programs.
Firewall to protect your online transactions Our advanced firewall automatically prevents theft of your personal and financial data.
Antispam Keep unwanted e-mails out of your inbox.

$59.95 $29.98

Upgrade and save $30

$114.95 $57.48

Upgrade for 2 years and save $57

Show all free downloads

Compare products to find the best upgrade for you


	avast! Free Antivirus For ordinary Internet use	avast! Pro Antivirus Customizable security	avast! Internet Security For shopping and banking
Compare by features
Continuous protection against viruses and spyware
Ensures all mails sent and received are clean
Keeps you protected from "chat" infections
Stops attacks from hijacked websites
Faster updates
Lets you safely browse suspicious websites or applications
Blocks hacker attacks to protect your identity
Keeps your mailbox free from spam
	Home use only Download	Free 30-day trial Download Buy and save $12	Free 30-day trial Download Buy and save $30
Compare by usage
Sending e-mails
Chatting
Surfing popular websites
Surfing high-risk websites
Shopping and banking online
Storing sensitive or financial data
	Home use only Download	Free 30-day trial Download Buy and save $12	Free 30-day trial Download Buy and save $30
Compare by technologies
Antivirus and anti-spyware engine
Real time anti-rootkit protection
File System / Mail Shield
Web Shield
IM / P2P Shield
Network Shield
Behavior Shield
Script Shield
avast! Sandbox
Silent Firewall
Antispam
	Home use only Download	Free 30-day trial Download Buy and save $12	Free 30-day trial Download Buy and save $30

Important information

Most of the features described above are new in version 5.0. You will need to download the new installation file, then run it and follow the on-screen instructions to complete the upgrade process. Also please bear in mind that the new version 5.0 runs only on PCs with Windows XP, Vista and 7. Older Windows operating systems are not supported.