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Computers Drivers and Software

How to Format a MyBook External Hard Drive on Mac OSX

Formatting an external hard drive like a MyBook on macOS will erase all data on the drive. Before proceeding, ensure you have backed up any important data.

Here’s a step-by-step guide on how to format a MyBook (or any external hard drive) on macOS:

  1. Connect the MyBook to Your Mac:
    • Plug in your MyBook external hard drive into a USB port on your Mac.
  2. Open Disk Utility:
    • You can find Disk Utility in the Utilities folder, which is inside the Applications folder. Alternatively, you can use Spotlight (press Cmd + Space) and type “Disk Utility” to find and open it.
  3. Select the MyBook Drive:
    • In the Disk Utility window, you will see a list of drives on the left side. Your MyBook should appear in this list.
    • Click on the external hard drive’s name (it might say “MyBook” or show the drive’s current name). Be very careful to select the correct drive to avoid formatting the wrong one.
  4. Erase (Format) the Drive:
  5. Choose a Format:
    • For most users on macOS, the best format choice is either:
      • APFS (Apple File System): Recommended for SSDs and newer macOS versions. It’s the default file system for macOS High Sierra and later.
      • Mac OS Extended (Journaled): This format is also known as HFS+. It’s the older Mac format, suitable for HDDs and is compatible with older macOS versions.
    • If you want the drive to be usable on both Mac and Windows, select ExFAT. However, note that very large files and certain permission settings might cause issues on Windows.
  6. Set a Name for the Drive:
  7. Start the Format:
  8. Completion:
    • Once the process is complete, you will get a notification. Your MyBook drive is now formatted and ready for use.
  9. Eject the Drive Safely:
    • Once you’re done, make sure to eject the drive safely by dragging its icon to the Trash (which will change to an “Eject” icon) or by right-clicking the drive in Finder and selecting “Eject.”

Remember, formatting is a destructive process. Always double-check that you’ve selected the right drive and ensure all important data has been backed up before proceeding.

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