The installation files for our award-winning antivirus and other Avast products
Install our award-winning antivirus software and join the world’s largest security network. Browse privately from anywhere in the world, without being tracked. Automatically update, fix, clean, and boost your computer.
Avast antivirus installation files
This lightweight version of our installer only takes up a few MB of disk space. All other components are downloaded during installation, so an Internet connection is necessary.
Offline installer The complete installation package, usually larger than 200MB, containing all files and components. This version of our installer can be used even without an Internet connection.