Installation guide
Avast Premium Security 1-Device-1 year (Windows only), Global — installation
Updated 2026-07-03
Activating Avast Premium Security key is really simple, just follow those steps:
1/ Download Avast Premium Security 2022 from the Avast website.
2/ Right-click the downloaded setup file avast_internet_security_setup_online.exe and click on Run as administrator.
3/ Once the Avast Setupwizard appears:
Click Install for setup with default options.
Select Custom installation to choose location of program files, and choose program components and languages on the following screen.
4/ The installation progress bar appears while the program installs. When setup is complete, you can activate your subscription by clicking I have already bought a subscription or continue in 30-day trial mode.
5/ When the network is detected, choose the firewall mode.
Select Private if your computer is connected to a home or private network.
Select Public if connected to a public or shared network.
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