Avast Internet Security System Requirements Jun 2026

You cannot install the software from a "Standard" user account. You must be logged into Windows as an Administrator or have access to the admin password to authorize the installation.

. Storage: 750 MB to 2 GB of free hard disk space. Avast +5 Mobile Requirements Android: Google Android 10.0 or higher is required for current versions, though some legacy apps may still support Android 5.0 or 6.0 . iOS: Apple iOS 15.0 or higher is required for the latest security features on iPhone and iPad. Avast +4 Essential Usage Notes Internet Connection: Required for downloading the software, activating licenses, and receiving critical real-time virus definition updates . ARM Support: Windows 11 on ARM is supported for basic protection, but some advanced tools like avast internet security system requirements

macOS 10.13 (High Sierra) or later. This includes newer versions like macOS 15 Sequoia and the anticipated macOS 26 Tahoe. You cannot install the software from a "Standard"

Note: Requirements are based on Avast Internet Security version 23.x and later. Older versions may have different requirements. Always download the latest version from the official Avast website. Storage: 750 MB to 2 GB of free hard disk space

32 or 64-bit, excluding RT and Starter Editions.

512 MB minimum, though 1 GB or higher is preferred. Hard Disk Space: 750 MB of free disk space. Mobile Device Requirements