Since it's a UWP game, you must enable Developer Mode in your Windows 10 settings (Settings > Update & Security > For developers) before installation.
It is standard practice to temporarily disable antivirus during installation and block the game’s executable in your firewall to prevent it from attempting to connect to official Microsoft servers. Since it's a UWP game, you must enable
Approximately 12.2 GB to 17.3 GB , depending on selective components (compared to the original ~48 GB). Since it's a UWP game
Are you having during the installation process? Buy Halo Wars 2 | Xbox Since it's a UWP game, you must enable
Includes the base game plus all DLCs (such as Awakening the Nightmare ).