Halo: The Master Chief Collection Accounts

Use the credentials you received (directly or via an external website) and log into the account.
Make sure that the content on the account is correct (correct edition of the game, no playtime etc)
Change the credentials to make the account your own:
Change the email
Change the password
Add 2FA (Steam Guard)
Please note that it may not be possible to add the purchased account to an existing Steam Family and to enable Family Sharing.
The account should be used as a way of accessing the game/content you are interested in. It is not recommended to use it as your main account, as you might have issues with making purchases on it.
Applying any changes to the purchased account, such as adding a payment method or changing the region, may result in the account being banned. In such cases, no refund is applicable.

Includes: Halo: Reach Halo: Combat Evolved Anniversary Halo 2: Anniversary Halo 3 Halo 3: ODST Halo 4 For the first time, the series that changed console gaming forever comes to PC with six blockbuster games in one epic experience. This bundle includes all titles in the collection that will be delivered over time, beginning now with Halo: Reach and ending with Halo 4 in 2020. Features PC Settings/Optimization: Halo: The Master Chief Collection is now optimized for PC with mouse and keyboard support, native PC features, up to 4K UHD and at least 60 FPS. Many games in the collection will include other setting options like ultrawide support, uncapped frame rate, adaptive sync support, FOV customization and more. Campaign: Featuring Halo: Reach, Halo: Combat Evolved Anniversary, Halo 2: Anniversary, Halo 3, Halo 3: ODST Campaign, and Halo 4, The Master Chief Collection offers players their own exciting journey through the epic saga. Starting with the incredible bravery of Noble Six in Halo: Reach and ending with the rise of a new enemy in Halo 4, the games will release in order of the fictional story. When complete, the Master Chief’s saga will total 67 campaign missions. Multiplayer: Each game released into The Master Chief Collection brings its own multiplayer maps, modes and game types. When finished, the collection will have the most diverse and expansive Halo multiplayer experience to date, with more than 120 multiplayer maps. Halo Insider Program: The Halo Insider Program is the best way for Halo fans and community members to partner with 343 Industries to improve our games, products, and services. Halo Insiders may have opportunities to participate in public flights of in-progress Halo releases and provide feedback to the development team. Become a Halo Insider and join us on the journey to bring the rest of the Master Chief Collection to PC in the upcoming year.