We know you’re excited to finally get your hands on Halo 5: Guardians on October 27, and we wanted to make sure you’re ready to jump in right away. If you’ve digitally pre-ordered Halo 5: Guardians on your Xbox One before September 21 and are NOT using Instant On power mode, you may still have an incorrect “stub file” for the title, which is simply a placeholder file. Players that have this particular version of the stub file will be required to delete it, and reinstall the title.

If you’ve pre-ordered on or after September 21, you should be ready to download the necessary updates as they become available. Once these updates have been installed, you’ll then be able to play Halo 5: Guardians. If you’re unsure if you’ve got this particular stub file, here’s how you can check:

Go to My games & apps Sort your game collection by selecting Installed à Sort by size

If your Halo 5: Guardians game size is greater than 40 GB, you’ve got the correct version, and you’re ready to download the necessary updates when they become available.

If your Halo 5: Guardians game size is less than 40 GB, you’ve got an incorrect stub file, and will need to delete that version and reinstall the game.

For information on reinstalling games on the Xbox One, head here: https://support.xbox.com/en-US/xbox-one/games/install-games

While we anticipate this affecting a small number of players, we want to ensure everyone is ready to play come launch day. For all updates on Halo 5: Guardians, stay tuned to Halo Waypoint and @Halo on Twitter. See you online, Spartans!