Installing additional purchased copies of Internet Security

I recently purchased and downloaded and installed Internet Security. The purchase allows the software to be installed on 3 pcs. What is the best way to install it on the other 2 pcs? Should I copy the program and license to disc and then install on other pcs, or should I download Internet Security from the Avast site and then use the original purchased license?

Thanks.

You can use the same setup you’ve already downloaded.
You can copy the license file to all the computers and import it into avast.

Inserting the license key into avast! Internet Security.