Summary: This article analyzes why the WD My Passport for Mac hard drive is not mounting on Mac and how to fix this issue. If you worry about losing data from this hard drive, you can recover lost data with iBoysoft Mac Data Recovery at first.
Overview of WD My Passport for Mac hard drive
The WD My Passport for Mac hard drive is specially designed for Mac mini computers, iMacs and MacBooks. This trusted portable storage always offers quick and easy way to expand the storage space of your computer and to store a massive amount of photos, videos, music and documents. The WD hard drive comes in some amazing features like cloud storage, password protection with hard drive encryption, and compatiblity with Apple's Time Machine backup software. But the problem is that no matter how powerful this hard drive is, it is possible that this WD My Passport for Mac hard drive is not mounting on Mac computer.
Here is one typical case from apple.stackexchange.com:
My WD hard drive (WD My Passport for Mac) won't mount on my MacBook Air, not even in Disk Utility. I have 1 TB family photos on this hard drive, which are very precious for me. How to fix WD My Passport for Mac hard drive not mounting error? Any data recovery solution? Thanks a lot!
In fact, this is a common annoyance for many WD customers that the hard drive fails to mount in Finder or Disk Utility. If your My Passport hard drive is not working for the same reason and you haven't got an effective workaround to fix this unmounted drive on your Mac, check this page. You'll know why it happens and how to mount the Western Digital my passport drive to access it again.
Why is WD My Passport for Mac not mounting?
WD hard drives, including My Passport and Easystore, not mounting on Mac result from various factors. The reasons could be virus infection, internal file system errors, sudden power failure, sudden power outage, unwanted interruption during transferring data, etc. For all kinds of reasons, your Mac won't recognize this hard drive and thus this external hard drive won't mount. As a result, you can't open this WD hard drive nor access your important files.
How to fix the unmounted WD My Passport external hard drive on Mac?
The connected WD My Passport drive should be automatically mounted on the desktop, in Finder and Disk Utility. When it won't mount on Mac as you expect, you can try these methods.
1. Show the mounted WD My Passport for Mac hard drive on Mac destop
Sometimes, the My Passport drive is recognized and mounted by the Mac, and you just don't see it. You can go to Finder > Preferences and confirm if the "External Disks" under "Show these items on the desktop" is selected. This will ensure if the external drives connected to this Mac are allowed to show on the desktop.
But if your WD My Passport drive is not even showing up, it's reasonable that you can't see it mounting on Mac. Then, you shoud check the connections and some hardware issues.
2. Mount the WD Mac hard drive in Disk Utility
You can go to Utility and see if this hard drive appears in the left sidebar. If your WD hard drive for Mac is not mounting but grayed out in Disk Utility, you can right-click and select the "Mount" button to mount it manually. However, if this external hard drive is corrupted, the "Mount" button will not be available and you need to try the next solution.
But sometimes, you can't mount a hard drive on Mac because of internal disk errors like file system corruption, partition table lost, the directory is corrupted, etc. You WD hard drive won't be recognized by your Mac in these cases. Fortunately, you can fix the hard drive not mounting issue with the native disk repair tool, First Aid.
3. Run First Aid to fix WD My Passport for Mac not mounting error
First Aid is a Mac built-in tool to verify and check minor problems of a hard disk. Whenever you have troubles with a hard disk, First Aid should be a good disk repair tool.
Step 1: Go to /Applications/Utilities/Disk Utility/, then click Continue.
Step 2: In the sidebar, select the not mounting WD My Passport for Mac hard drive.
Step 3: Click the "First Aid" button.
Step 4: Click Run.
If Disk Utility reports that the WD My Passport for Mac hard drive appears to be OK or has been repaired, you're done. Otherwise, this WD My Passport drive has been corrupted. You have to retrieve your data from this corrupted hard drive as soon as possible.
When those methods didn't make any difference and the WD My passport for Mac hard drive is not mounting still, you need to check some hardware issues that get involved in the disk connection.
Let's start with some basics factors.
4. Check the power supply of the WD hard drive
It's well known that insufficient or no power supply in USB ports could also lead to hard drive not mounting issue. Therefore, you should make sure the WD My Passport for Mac hard drive is getting the appropriate power. If the drive came with a Y-cable, use both USB connectors. Moreover, do not connect the drive through a USB hub, connect it directly to the Mac. Make sure the power adapter is connected directly to a wall outlet, not to an extension cord.
5. Check the USB cable
When external hard drive is not showing up on Mac, ensure the cable is properly connected to both the drive and computer. Then try connecting your WD My Passport for Mac hard drive with a new USB cable if you can fetch another one.
6. Check the USB port of your Mac
If the problem still continues, try using a different USB port. Perhaps your Mac has two USB port - the back and front ones. Assuming the external hard drive is plugged in the front USB port, try to insert the drive to the back USB port.
7. Check for driver update
If the hardware seems to be OK, let's check the software that related to this disk problem - the disk driver. A driver is a software component that allows the operating system and a device to communicate with each other. If your driver files go missing, outdated, or turn corrupted due to any virus invasion or invalid operation, the WD My Passport drive will be not working, and the external hard drive won't mount on Mac.
Step 1: Click the Apple icon and select "App Store…"
Step 2: Click Update (NOT UPGRADE!) to install a specific update or Update All to install all available updates.
Sometimes, WD My Passport for Mac driver, software, and WD disk tool are needed, especially when you want to open a WD hard drive that is locked. You can go to WD official website and download software for WD My Passport troubleshooting and for WD My Passport driver update.
How to fix WD My Passport for Mac hard drive not mounting error without losing data?
However, if WD My Passport for Mac hard drive still won't mount on Mac, the last solutions is to reformat the hard drive. But reformatting will delete all data stored on the hard drive, and most of the time, many important files are stored on the WD My Passport for Mac hard drive.
If you haven't backed up important files, how can you recover files from the WD My Passport drive? It's high time to recover lost data from the unmounted hard drive first.
Step 1: Recover lost data from unmountable hard drive with iBoysoft Mac Data Recovery
As for Mac data recovery, iBoysoft Mac Data Recovery is highly recommended as it's a free Mac data recovery software. It can easily recover lost data from unmounted WD My Passport for Mac hard drive. This software can recover lost data from corrupted hard drive, unreadable hard drives, formatted hard drives, unrecognized hard drives, unmountable hard drives, inaccessible hard drives, and recover lost data from uninitialized hard drive. You can use this hard drive data recovery software on macOS Catalina 10.15/Mojave 10.14/High Sierra 10.13/10.12 Sierra and Mac OS X 10.11/10.10/10.9/10.8/10.7.
1. Free download and install iBoysoft Mac Data Recovery.
2. Launch iBoysoft Mac Data Recovery and select the unmounted WD My Passport for Mac hard drive.
3. Click "Scan" to search for all lost files on this drive.
4. Preview the listed scanning results, choose files we want, and click "Recover" button to get them back.
Hopefully, you'll get all your files off after the WD My Passport is not working nor mounting.
Step 2: Fix WD hard drive not mounting error by reformatting
After getting lost files back, you can fix WD My Passport for Mac hard drive not mounting error by reformatting without worrying about losing data. This will reset the WD My Passport external hard drive.
1. Launch Disk Utility from Utilities.
2. Select the unmounted WD My Passport for Mac hard drive on the left part of the window.
3. Click the "Erase" on the top of the Disk Utility window.
4. Complete the related information (name, format, scheme, etc.), then click the "Erase" button.
This article mainly talks about a WD My Passport for Mac hard drive not mounting issue, analyzing why this issue occurs. When WD My Passport for Mac is not working or corrupted, you can repair this disk error without losing files on this drive by the assistance of iBoysoft Mac Data Recovery.
For any questions or suggestions, please email us below.