External Harddisk doesn't work on MacBook Air

Discussion in 'Mac Pro' started by swadhwani, Feb 2, 2017.

  1. swadhwani macrumors newbie

    Feb 2, 2017
    Hello Folks,

    I have a 500 GB seagate external drive which I was using with windows. It had some issues and I believe a friend of mine tried fixing it using his Mac but failed.

    I don't have any data init and I want it to work in my new MacBook Pro. On connecting to MacBook, I can see it in disk utilities, but while trying to erase it failed.

    Could you suggest what should I do?


  2. ActionableMango macrumors G3


    Sep 21, 2010
    This is the Mac Pro (desktop) forum. You might get more appropriate help in the MacBook or OS X forums.

    In any case, is there an error message of any kind that you can show here? Does the external enclosure have any kind of write-protection switch?
  3. h9826790 macrumors G5


    Apr 3, 2014
    Hong Kong
    A little suggestion, if you can provide a screen capture / failure message / code / etc, that will make the others easier to help.
  4. flyinmac macrumors 68040


    Sep 2, 2006
    United States
    Did you just try to erase it?

    Try repartitioning it.

    Choose to change the partition. New single partition. Change the type to GUID in options. And format as HFS / OS X Journaled.

    It's probably currently an NTFS partition, which the Mac can't write to. Hence cannot erase. But the Mac can repartition it and start over.
  5. elf69 macrumors 68020


    Jun 2, 2016
    Cornwall UK
    can try paragon ntfs driver free trial see if can read.

    but as above repartition.

    screen help too.

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4 February 2, 2017