You are now ready to boot the new drive for the first time:

You will need the official Xbox Offline System Update file. Download the OSU1.zip directly from the Xbox Official Support Page.

: A blank USB drive (at least 4 GB) to create a bootable Linux environment. Required Software

The script uses a specialized configuration file ( create_xbox_drive.bat ) to inject the exact GUID partition tables required by the Xbox One. Connect the Drive

The tool offers a range of features, including:

—used for formatting and partitioning internal hard drives (HDD) or solid-state drives (SSD) for use in an Xbox One console

: Carefully choose the drive index that matches your connected replacement drive to avoid erasing your primary computer storage.

Which of Xbox One do you have (Original, S, or X)? What is the capacity of the drive you are planning to use?

: It prepares a new, blank SATA drive (HDD or SSD) with the correct GUIDs and partition structures so the console can recognize it and begin the Offline System Update (OSU1) Key Features Automated Partitioning

What is the of your new target drive?

This process completely erases the target hard drive. Back up any critical PC data before running the scripts.

A: xboxonehddmaster9 is a software tool designed to optimize and manage the hard drive of Xbox One consoles.

Connect your new SSD or HDD to your computer. Ensure the drive is "unallocated." If there are existing partitions, you may need to use (Windows) or gparted (Linux) to wipe them. 2. Run the Script

Carefully disassemble the console. (Note: The Xbox One S and X are held together by security Torx screws and plastic clips). Remove the old internal hard drive from its plastic caddy.

A computer running Windows 10/11 or a native Linux environment . Software Requirements