Pc halo最後一戰序號

"Halo: The Master Chief Collection" for PC does not require a CD key or a product code to play. Instead, the game is purchased and downloaded through the Steam or the Microsoft Store, and once you have purchased and downloaded the game, you can simply launch it through the respective platform.

If you are referring to a code for a Halo game on PC, it might be for a DLC or a bonus content. Make sure to redeem any codes you have through the correct platform (Steam or Microsoft Store) to ensure you can access the content you've purchased.

If you're having trouble with a code or need further assistance, it's best to contact the retailer where you made the purchase or the customer support for the platform through which you downloaded the game.