Before you , ensure your hardware meets these standards for optimal performance: Avast Offline Installation Files

When you need to protect a PC without a stable internet connection, the standard online installer won't work. To ensure your system stays secure, you need to . This standalone installer includes all necessary files to set up the software without needing to fetch data from servers mid-installation. Where to Download the Avast Offline Installer

It allows you to completely uninstall existing antivirus software and restart before running the Avast setup, preventing driver conflicts. System Requirements (2026)

Visit Avast.com and navigate to the Offline installer column for "Avast Antivirus Free".

If you need to install Avast on multiple machines, you only download the large file once and transfer it via USB.