Step 1: Login or Create an Account
Go to the Rockstar Social Club website here: https://signin.rockstargames.com/signin/user-form?cid=socialclub
Login, or if you do not already have an account simply create one.
Step 2: Activate Your Game
Once logged in, go to this page: https://socialclub.rockstargames.com/activate
Click on the button next to the Grand Theft Auto V cover that says “Use Rockstar Code”.
Enter your product code and click “Activate” and then “Confirm”.
Click on “Download for Windows” to download the GTA V launcher/downloader.
Step 3: Download Your Game
Open the GTA V launcher and begin downloading your game.
Once the game has downloaded/installed you will be able to play!