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Unable to format SSD external drive in APFS in OS Sonoma

There is no option in disk utilities on the MacOS Sonoma to erase new SSD external drive to APFS format.

MacBook Pro 14″, macOS 14.1

Posted on Mar 3, 2024 3:45 AM

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Mar 3, 2024 4:02 AM in response to BiLLyLim

That is because the User has not chosen the Drive by Manufactures Name


The Mount Point in your above image is showing " /Volumes/TM BillyM "


To do this the right way and refer to Link below


Erase and reformat a storage device in Disk Utility on Mac


The Important element is in below image


In that image the Drive Name is a " WD Elements 10B8 Media "



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Unable to format SSD external drive in APFS in OS Sonoma

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