A box will open for you to enter your code into. Carefully type in your code exactly as it appears. Your code is unique to you and can only be activated once. Then click ‘Next’ and FSX: Steam Edition will automatically install. To play FSX: Steam Edition, go to Steam and click on ‘Library’ at the top, and select ‘All Games’ from the dropdown menu. FSX: Steam Edition will appear in the left-hand list: simply double-click on it, or right-click on it and select ‘Play Game’.
Alternatively, if you opted to add a desktop icon for FSX: Steam Edition during the installation, you can double-click on the icon to play FSX: Steam Edition.