[Solved] WD external hard drive won't mount on Mac

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Summary: WD external hard drive won't mount on Mac? This tutorial will show you how to fix WD My Passport not mounting, showing up, recognized, or detected on macOS. You'd better:

  1. 1. Get back your data from the drive before fixing.
    2. Force mount the drive in Disk Utility.
    3. Check the drive on another drive.
    4. Use First Aid in Disk Utility.
    5. Reformat the drive.

WD external hard drive will not mount Mac

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I have a 1 TB WD external HD that won't mount. I connect it via firewire to my MacBook Pro. My Mac sees the drive, it just won't mount. I've also tried to mount it via USB, but again, my system sees the drive, but won't mount it. Does anyone have any suggestion what I can do?

Is this example familiar? Generally, when you connect a WD, Seagate, Toshiba, or Samsung external hard drive to a Mac, the Mac automatically mounts the disk, and then you can proceed with read and write operations on it. Alternatively, you can control-select the disk and click Mount to make it accessible by using Disk Utility.

However, hard drive problems may happen unexpectedly sometimes. For instance, your WD external hard drive won't mount, show up, be recognized, or detected on Mac, and this issue denies your access to files and folders stored on the disk.

This issue drives people crazy, especially when you encounter the obstacle com.apple.DiskManagement.disenter error 49153. Remain calm, however, all data is still placed on the WD external hard drive. here we will explore how to fix WD My Passport not mounting, showing up, recognized or detected on Mac with effective workarounds.

Must-do before fixing WD external hard drive won't mount Mac

Because we can't tell what final reason leads to the WD hard drive being unmounted, getting all data stored on it previously is of vital importance. Or data loss may occur accidentally during the repair process.

Since the WD external hard drive won't mount, you're recommended to recover lost data from an unmountable external hard drive here. Simple ways to recover files from an unmounted hard drive don't work, a professional data recovery utility takes the crucial role instead. 

iBoysoft Data Recovery for Mac can recover lost data from unmountable, unreadable, corrupted, and inaccessible external hard drives, hard drives, USB flash drives, SD cards, memory cards, etc., with ease. It supports recovery documents, numbers, presentations, photos, audio, videos, and emails on Mac OS X 10.11 to macOS 26 Tahoe, and it works fine on M1, M1 Pro, and M1 Max Mac.

With an intuitive and user-friendly interface, it's super easy to recover files and folders from the unmounted WD external hard drive with iBoysoft.

  1. Download and install iBoysoft Data Recovery for Mac on your Mac.
  2. Launch this program. Select the unmountable WD external hard drive and click "Search for Lost Data". The program will start scanning this drive for recoverable files.
  3. After the scanning process finishes, you can click Preview to check the found files.
  4. When your check ends, choose what you want to get back and click "Recover".
    recover files from unmounted WD drive
  5. Go through the recovered files and make sure all desired files are back. Do not save the recovery results to the same partition or drive that you scanned, or data loss may happen again.

If you find your files successfully with iBoysoft Data Recovery for Mac, why not share your happiness with more people?

WD external hard drive won't mount on Mac, how to fix it?

Loads of reasons can be blamed for causing the WD external hard drive not mounting on Mac, yet the solutions matter much since we aim to make the WD hard drive functional again.

You can get 4 effective methods to get the WD hard drive mountable! Each way is elaborated, and you can make it clear even if you're a novice at macOS. Let's get started then!

Solution 1: Force mount WD external hard drive/WD My Passport drive

When the WD external hard drive or WD My Passport drive doesn't mount on your Mac automatically after connection, just go to Disk Utility to force mount it manually.

  1. Launch Disk Utility on your Mac with Spotlight Search or Mac Launchpad.
  2. Click the “View button and select "Show All Devices" to make sure you can force mount your external drive.
  3. Select your WD external hard drive in the left sidebar.
  4. Click the "Mount" button on the Disk Utility top toolbar.

Solution 2: Connect the WD external hard drive to another device

If you have an alternative macOS computer, connecting the unmounted external hard drive to it is worth a shot. Sometimes, an external hard drive works improperly on a Mac while it works fine on another.

Use a proper adapter to connect the WD hard drive and the Mac to see if the drive mounts successfully. If not, it indicates that there is something wrong with your WD hard drive. You can try the following professional solutions explored below.

Solution 3: Run Disk Utility to repair the WD external hard drive

If you fail to force mount the WD external hard drive, running Disk Utility First Aid to repair the disk is a nice try. Disk Utility First Aid can fix tiny corrupted file systems on your Mac with ease. Read the following content to know how to perform that task:

  1. Launch Disk Utility on your device.
  2. Choose the unmountable WD external hard drive in the Disk Utility main window.
  3. Select "First Aid" in the top center and click "Run".
  4. Wait until Disk Utility notifies you that the operation is successful or the disk has been repaired.

Then you can check if the WD external hard drive or WD My Passport drive is mounted on your Mac. If not, we assume that you have to reformat it and give it a new file system to make it function normally.

Solution 4: Reformat to fix WD My Passport not mounting

If, sometimes, Disk Utility fails to repair the problematic WD hard drive, the final solution you can try is to format the external hard drive on Mac. But reformatting wieps the hard drive entirely.

To avoid data loss, you're recommended to recover the inaccessible data on the drive first. Utilizing iBoysoft Data Recovery Software to recover lost data is perfect if you have no backup of the unmounted drive.

Fix WD external hard drive not mounting, showing up, recognized, or detected on Mac by reformatting it:

  1. Go to Applications > Utilities > Disk Utility.
  2. Select the unmountable WD external hard drive and click "Erase" on the top.Erase external hard drive
  3. Provide a name and a format to erase the drive.
  4. When finished, you can mount your WD external hard drive on a Mac and use it again.

Hope this tutorial can help to fix the WD external hard drive not mounting/showing up/recognized/detected on Mac. If your WD external hard drive is not recognized on Windows, it is also easy to fix. 

5 Reasons the WD external hard drive won't mount on Mac

It's worth noting that these reasons can bring an issue of external hard drive not showing up on Mac as well, so you can take them into consideration when dealing with the issue of the external hard drive not showing up.

Wrap up

The WD external hard drive not mounting on Mac can be annoying, as it interrupts your work. This tutorial tells you how to fix the WD external hard drive won't work on Mac in 4 methods. Besides, you can utilize iBoysoft Data Recovery for Mac to grab the inaccessible data on the unmounted drive. Feel it is informative? Try to share it now!

FAQs about WD external hard drive won't mount Mac

QWhy is my WD external hard drive not mounting on Mac?
A

There are kinds of reasons that may cause the WD external hard drive not mounting on Mac: Poor connection between Mac and WD external hard drive, WD external hard drive's file system is incompatible with Mac, WD external hard drive's file system being corrupted, an outdated driver of the WD external hard drive, and WD external hard drive being failed or damaged.

QHow do I force my Mac to mount a WD external hard drive?
A

Go to Finder > Select Applications folder > Find and open Utilities > click Disk Utility > Choose the external volume from the sidebar > select the "Mount" tab at the top center.