Get the world’s #1 antivirus for free.
Avast Free Antivirus protects your computer against viruses and malware, and it helps you protect your home network against intruders.
![](https://static3.avast.com/10003897/web/i/windows/av-comparatives-2020.png)
What’s inside the latest version?
A beautifully intuitive interface, advanced application protection, a new passive mode for running multiple security products in parallel — and a little something for you gamers and movie buffs.
Avoid becoming the victim of digital extortion
Ransomware is quickly becoming one of the most common — and dangerous — types of malware out there. Avast Free Antivirus protects your devices against havoc-wreaking ransomware so you don’t become the victim of digital extortion.
![](https://static3.avast.com/10003897/web/i/v2/aim/img/lp-fav-sft/media01@2x.jpg?width=648)
Game or movie time. Now uninterrupted
![](https://static3.avast.com/10003897/web/i/v2/aim/img/lp-fav-sft/media01@2x.jpg?width=688)
![](https://static3.avast.com/10003897/web/i/v2/aim/img/lp-fav-sft/media02@2x.jpg?width=648)
Introducing Behavior Shield
![](https://static3.avast.com/10003897/web/i/v2/aim/img/lp-fav-sft/media02@2x.jpg?width=688)