Avast Ultimate 1 PC-3 years (Windows only), Global — installation

Activating Avast Ultimate key is really simple, just follow these steps:

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Download Avast Premium from the Avast website.

Run as administrator the downloaded file.

Once the Avast Wizard Setup is displayed: - Press on Install for setup with default options. - Select Custom installation to choose the location of program files. Pick the program components and languages afterwards

Once the setup is complete, you can activate your subscription by clicking I have already bought a subscription or proceed with the 30-day trial mode.

When your network is detected, choose the firewall mode of your preference: - Select Private if your computer is connected to a home or private network. - Select Public if connected to a public or shared network.

That's it!

Alternatively, feel free to check the official activation guide for Avast Ultimate.