Hi, I’ve got a new My Passport Ultra drive and tried following the steps (Instructions to Format a Drive for Use with Windows or macOS) to reformat for use with Time Machine on macOS Sierra 10.12.5 (Time Machine Backup and Restore from macOS to a WD External Drive), however I got stuck at step 6 and got the error alert below. Does anyone know where I can go from here?
Thank you!!
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