Results 1 to 3 of 3
  1. #1

    Member Since
    Nov 01, 2012
    Exclamation Incorrect formatted external hard drive.....
    I got a Seagate external hard drive and used it on a Windows computer, then tried to use it on my Mac (unsuccessfully). It wouldn't let me drag anything to the disk. The format of the "Expansion Drive" is Windows NT File System (NTFS). How do I format it so that I can use it on my Mac, and will I lose any files from the time I transferred files on the Microsoft computer? Thanks so much!

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Keller, Texas
    2017 27" iMac, 10.5" iPad Pro, iPhone 6s+, iPhone 7+, Numerous iPods, High Sierra
    Not a topic for the "Lounge". Moved to correct forum.

    You can reformat the drive by using Disk Utility from the Utilities menu. (Applications -> Utilities -> Disk Utility) Format the drive to Mac OS Journaled.

    But first backup all the files on that drive as formatting will destroy all the data.

  3. #3

    Slydude's Avatar
    Member Since
    Nov 15, 2009
    North Louisiana, USA
    2.8 GHz 2008 MacBook Pro 10.11, 8 GB mem, iPhone 8+, 2015 iMac 16 GB 10.13 beta
    Are you planning to keep using the drive with Windows in addition to with the Mac? If you are don't format it as Mac OS Journaled Windows won't read it.

    If the drive will be used on both platforms you do have some options though:

    1. Format the drive as FAT 32. Both platforms can read this format but each file is limited to less than 4GB.
    2. Mac your Mac write to NTFS drives using third-party software.
    3. I believe both platforms can read drives formated in Ex-Fat.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Incorrect ejection has blitzed the boot region on external hard drive
    By Macca Six in forum macOS - Operating System
    Replies: 1
    Last Post: 12-30-2013, 10:05 PM
  2. Replies: 5
    Last Post: 01-09-2013, 11:09 AM
  3. Hard drive capacity incorrect
    By hughvane in forum Other Hardware and Peripherals
    Replies: 6
    Last Post: 09-06-2011, 01:23 AM
  4. External hard drive formatted fat32
    By petegibb1977 in forum Switcher Hangout
    Replies: 6
    Last Post: 09-07-2010, 03:44 PM
  5. external hard drive is formatted specifically for Mac, so it doesn't show up on my PC
    By misterbrown in forum Other Hardware and Peripherals
    Replies: 9
    Last Post: 07-31-2009, 02:16 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts