DVD Version - "This code has already been redeemed." when reinstalling or installing to a new PC
This article is regarding Microsoft Flight Simulator, however, the same steps can be applied to other games and applications redeemed on the Microsoft Store, you'll just need to substitute Microsoft Flight Simulator with the app or game you are trying to download.
If you have purchased a key from a third-party vendor and receive this error when redeeming a code for the first time, please contact the vendor/key shop you purchased the key from.
If you are attempting to install Microsoft Flight Simulator on a new system, you will need to ensure you are logged into the same Microsoft account you were when you first redeemed the code.
The code provided in the boxed copy is a one time use code, however, it is linked to your Microsoft account. In order to download the launcher again, please follow the steps below:
1) Open the Microsoft Store app on your system.
2) Click on the 3 dots in the top right corner and click "Downloads and Updates"
3) Click "Get updates" and then the "Update all" button. Wait for all updates to complete before moving to step 4.
4) Click "All owned" from the left side panel and then click "Install" or "Launch" on Microsoft Flight Simulator.