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  1. #1

    Member Since
    Jun 22, 2007
    External harddisk

    I've bought an external harddisk and connected it to my Mac.
    Unfortunately it won't let me store files. I don't have permission.
    In the Info window I can see that I'm only permitted to read and do not have the option to change my permission.
    Any suggestions to what I can do?

  2. #2

    mac57's Avatar
    Member Since
    Apr 29, 2006
    St. Somewhere
    iMac 27" 3.4 GHz, 256 GB SSD, 2 TB HDD, 8 GB RAM
    Could it be formatted for NTFS? Macs can't write this format. If so, use Disk Utility to reformat it to HFS+ (the native journaled Mac format) and then all will be well.
    My Macs: iMac 27" 3.4 GHz, Mac Pro 3.2 GHz, PowerMac G5 Quad 2.5 GHz, G4 Cube with 1.2 GHz Upgrade
    My iStuff: 64GB iPhone 5, 64GB iPad4, 30GB iPod Video, 16GB iPod Touch
    My OS': Mac OS X Lion, Mac OS X Snow Leopard, Mac OS X Tiger, Mac OS 9.2.2, openSUSE 10.3
    I was on the Mac-Forums honor roll for September 2007

  3. #3

    Member Since
    Aug 31, 2007
    does that mean that a mac can read the data on a (windows formatted) external hard drive?

    that would be great news since i was thinking on how to migrate data from the pc i currently use to the mac i am intending to buy shortly...

  4. #4

    baggss's Avatar
    Member Since
    Oct 10, 2004
    27" 3.4 Ghz i7 iMac-13" C2D Macbook-OSX 10.10.2 -64Gb iPad 2-64 Gb iPhone 6+-ATV 2-14Tb of Storage
    Macs can read/write to FAT-32 formatted discs but not NTFS. NTFS is read ONLY without 3rd party software.

    You can reformat the drive on your Mac to FAT-32 by using Disc Utility. Make sure you select MD-DOS as the format.

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