In order to activate your Uplay Games Code, Open the Uplay download page and download Uplay Client for PC.

After you launch the Uplay Client, Sign in to your Uplay account or create a new Uplay account. Once you sign in, click on the Menu and select ‘Activate a key’.

Then you need to paste your Uplay Games Key in the designated area and click the 'Activate'.

Once activated, the game will automatically be added to your library, ready to download and enjoy.