How to redeem Rockstar CD-KEY?

Redeeming Rockstar Activation Codes in the Rockstar Games Launcher
1. Download and install the Rockstar Games Launcher:
https://socialclub.rockstargames.com/rockstar-games-launcher
2. Sign in with your Rockstar Games Social Club account.
3. Click your avatar in the top right.
4. Select Redeem Code.
5. Enter your Rockstar Activation Code into the field.