Mac Os Not Recognizing External Hard Drive

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  1. Macbook Not Recognizing Hard Drive
  2. Mac Os Catalina Does Not Recognize External Hard Drive
  3. Mac Os High Sierra Not Recognizing External Hard Drive
  4. Mac Os Not Recognizing External Hard Drive Computer
  1. Dec 10, 2018  First, make sure Finder will display drive icons. By default, it doesn’t display much and the setting to not show external disks may be enabled. Open a Finder window. Select Preferences and the General tab. Make sure the box next to External disks is checked. If the box is checked, move on to fix external hard drive not showing up on Mac.
  2. Feb 01, 2016  Mac or Windows computer not recognizing your external hard drive or flash drive? This is a common problem, especially when connecting hard drives between Mac OS X, Windows and Linux. It can also happen on a single system where it was working just fine for a long time and then suddenly stops being recognized by the operating system.

Jan 01, 2017  Original Title: lental Windows 10 installed and appears to be working well. However, after installing, it does not recognize an external hard drive. Jan 26, 2014  I installed a new hard drive onto my Mid 2012 13' MacBook Pro and I tried to install IOS onto it but my hard drive wasn't recognized More Less MacBook Pro, iOS 7.0.4, 500GB 5400-rpm hard drive. May 04, 2020  If not, you can buy a new external SATA-to-USB adapter dock or enclosure, plug your bare drive into that, then connect that to your PC over USB. If it works, then your old enclosure (or its power. May 01, 2020  Sadly, Macs not recognizing external drives is nothing new. It’s a perpetual problem, especially after updating your Mac’s operating system to the latest macOS or OS X. But the good news is that quite a few solutions are available to fix this temporary issue (hopefully, it’s just that!) Reader tips.

Hello,

My wife has an iMac with OS X Lion on it. We partitioned her HD to run bootcamp with Windows 7 to play some games. Bought a Seagate Backup Plus external USB HD for extra space for games on the Windows 7 end and Time Machine for her iMac. Time Machine does not work with the Paragon driver the ext HD came with so I decided to partition it into two parts; one for Mac, the other for Windows.

External

I looked up about the different HD formats for Mac and Windows. Used Disk Utility to partition the ext HD 50/50. Named the top partition Mac and chose the format Mac OS Extended (Journaled), named the bottom Windows and chose the format NTSF.

After running Time Machine on the Mac partition I restarted the iMac to Windows 7. I did not eject and unplug the ext HD before restarting, not sure if it played into my problem or not but thought I’d mention.

Mac Os Not Recognizing External Hard Drive

Macbook Not Recognizing Hard Drive

Once Windows 7 started I opened up My Computer and I did not see the ext HD listed. I ran Disk Management and saw the ext HD listed but it did not show any partitions. Just shows the entire ext HD unallocated.

What do I need to do in order for Windows to see the necessary partition?

Mac Os Catalina Does Not Recognize External Hard Drive

Been reading up on the different “options” for the partitions; i.e. GUID and MBR.

Mac Os High Sierra Not Recognizing External Hard Drive

Recognizing

Mac Os Not Recognizing External Hard Drive Computer

  1. Hovsep,

    I originally read that link you provided before I was having the issues. I solved the problem yesterday. I changed the Windows partition on the external HD to MS-DOS, ejected the HD, rebooted into Windows 7, plugged in the HD, Windows saw HD right away, went into Disk Management and changed the Windows partition from MS-DOS to NTSF.

    Thanks for everyone's help.

    • Thanks for your feedback:) your valuable solution will help others:)

  2. I am a bit surprised you are having issues because your iMac and OS X version suggests that the drive is most likely formatted using the GUID/GPT partition scheme which Windows 7 should have no issues with reading.

    Actually, being curious I just tested it with Lion and Windows 7 (no bootcamp):
    I partitioned a drive with one OS X Extended partition, one ExFAT using the GUID partition scheme and Windows detected the ExFAT partition right away.

    Maybe it's a derp from bootcamp? Anyway, the options you were reading up on are most likely the solution to your problem.

    Since you only used Time Machine so far and Windows couldn't even access the drive I assume you have no problem with formatting the drive again losing all data currently stored on it?

    Go into Disk Utility, select the external drive and click on the partition tab.
    Select 2 partitions etc. as you did before ~ OS X Extended for Time Machine, ExFAT or Free space for Windows. At the bottom click options and select 'Master Boot Record'. Then finally apply the settings and let the drive partition.

    Maybe bootcamp only likes MBR partitions ~ hope this solves your issue.

  3. have you tried to use windows restore point to revert back just before the problem started?

    How to view HFS+ hard drives from Windows
    http://www.macbreaker.com/2012/02/access-mac-os-x-partition-from-windows.html

    • Not quite what I am asking.

      Bought the external HD because it is compatible with Mac and Windows because of the pre-installed Paragon driver (allowing Mac to read and write on NTSF). However, there was a note saying Time Machine wouldn't be able to be used. So I reformatted the external HD.

      I'm wanting to know why the partitioned disk is not showing up in My Computer. In Disk Management the entire external HD is unallocated. Only option when right clicking not grayed out is to format it.

    • how you reformatted the external hard drive? which file systel

      The best ways to format an external drive for Windows and Mac
      http://howto.cnet.com/8301-11310_39-57401784-285/the-best-ways-to-format-an-external-drive-for-windows-and-mac/