Format external hard drive without losing data mac

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Mac OS Extended format for macOS Sierra 10.12 or earlier.APFS format for macOS Big Sur 11, Catalina 10.15, or Mojave 10.14.Different file system formats exist for different operating systems. Recover Data Lost due to Accidental FormattingĪn internal or external Mac storage drive requires compatible files system format to be accessible in macOS. Format a Mac External Hard Drive Using TerminalĤ. Format the Startup Disk in macOS Recovery Modeģ.

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Back Up Your Mac Hard Drive before FormattingĢ.

 

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