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Feel better with our best protection
avast! Internet Security provides complete antivirus, anti-spyware, antispam, and firewall protection, complemented by avast! SafeZone™ and new hybrid cloud technologies, for best protection against viruses, spyware, and other types of malware.
Shop and bank online without worry
SafeZone creates a private and isolated virtual window on your desktop for safely making your sensitive financial transactions when shopping or banking online.
Surf and socialize without annoyance
Sandbox lets you surf the web and run programs virtually (outside your PC), and Web, IM, and P2P shields ensure your safety on social networks (Facebook, Twitter, etc.), IM chats (Skype, ICQ, etc.), or file-sharing sites.
Benefit from real-time protection
Hybrid cloud technology streams your virus database updates to your PC in real-time, so your avast! software has all virus definitions as soon as they are known to our Virus Lab.
Know what’s coming before you click
Our cloud-based FileRep feature keeps reputation data on countless files, using select criteria (such as prevalence and emergence) for determining risks – so we can warn you of a file’s reputation beforehand.
Keep your ID yours and yours alone
Your built-in silent firewall blocks hackers and other unauthorized entry attempts to steal sensitive personal data from your PC. Phishing attacks are prevented via built-in anti-spam.
See your avast! history
Your AVAST Account portal is your personal directory for all your avast! related data. Each month, we also prepare for you a Security Report that shows an overview of the most significant details (e.g. number of infected sites blocked).
5 reviews for Avast! Internet Security
Kayla Perkins
5 out of 5
I’ve been using Avast Internet Security on all 3 of my Windows computers for many months. It’s simple and Lightweight on the system with Attractive and intuitive interface. I am a satisfied customer and plan to remain a customer of Avast.
Lakisha Consiglio
4 out of 5
Avast is Reliable, cost effective, it gives up to date protection for your PC. I used Avira/Norton for a long time with unreliable results for high cost. Compare to cost and results of Avira, Norton and Avast. I prefer Avast is best. Go with Avast!!
Dara Leveque
3 out of 5
Easy to download, best price compare to other sites and great protection.
Minerva Majeed
4 out of 5
From my experience, it’s best to use Avast internet security for windows devices rather than using normal anti-virus SW because The WWW world of threats has grown more from anti-virus days, and one require a better, more complete, solution to protect our data.
Jannie Souders
5 out of 5
It is less annoying and works perfectly than Kaspersky. It uses fewer resources than Norton and Kaspersky. It was rated in the top ten of PC mag. These reasons are good enough for me to buy it as a gift
Only logged in customers who have purchased this product may leave a review.
I’ve been using Avast Internet Security on all 3 of my Windows computers for many months. It’s simple and Lightweight on the system with Attractive and intuitive interface. I am a satisfied customer and plan to remain a customer of Avast.
Avast is Reliable, cost effective, it gives up to date protection for your PC. I used Avira/Norton for a long time with unreliable results for high cost. Compare to cost and results of Avira, Norton and Avast. I prefer Avast is best. Go with Avast!!
Easy to download, best price compare to other sites and great protection.
From my experience, it’s best to use Avast internet security for windows devices rather than using normal anti-virus SW because The WWW world of threats has grown more from anti-virus days, and one require a better, more complete, solution to protect our data.
It is less annoying and works perfectly than Kaspersky. It uses fewer resources than Norton and Kaspersky. It was rated in the top ten of PC mag. These reasons are good enough for me to buy it as a gift