Trouble formatting USB flash drive.

Discussion in 'Mac Basics and Help' started by Caris, Aug 27, 2015.

  1. Caris macrumors 6502a

    Caris

    Joined:
    Sep 25, 2006
    Location:
    Newcastle Upon Tyne, UK
    #1
    My Mac went to sleep during a file transfer, and I'm worried it's broke my USB stick. When I try to format it, I get this message.

    Can anyone help?
     

    Attached Files:

  2. bradl macrumors 68040

    bradl

    Joined:
    Jun 16, 2008
    #2
    Instead of having the Mac format the stick on its own, try using Disk Utility to delete the single partition on the stick, but recreate it and format it.

    That should help.

    BL.
     
  3. Caris thread starter macrumors 6502a

    Caris

    Joined:
    Sep 25, 2006
    Location:
    Newcastle Upon Tyne, UK
  4. Fishrrman macrumors G3

    Joined:
    Feb 20, 2009
    #4
    OP:

    Do you happen to have ANOTHER computer you could take the flash drive to, and try to re-initialize it on that machine?

    If this is possible, I suggest you do that.

    If it doesn't initialize on the second computer (either Mac or PC), I'd be looking for another flashdrive...
     
  5. phrehdd macrumors 68040

    phrehdd

    Joined:
    Oct 25, 2008
    #5
    Might seem like over kill but -

    Eject the flash drive. Reboot your computer and try another USB port. Use the disk utility if the drive is recognized.
     

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