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Summary: This post shows how to access a WD hard drive that's not recognized by Mac. To avoid data loss when fixing the unrecognized WD external hard drive, you can recover lost data from the WD hard drive for free with iBoysoft Data Recovery for Mac.
Just like Seagate external hard drive not recognized on Mac, WD hard drive not recognized is a question frequently asked by Mac users in Apple related forums. It happens to WD My passport, WD My Book, WD Elements and Easystore, etc.
If you are one of those who are wondering:
- Why Mac won't recognize my WD hard drive?
- How can I make the WD hard drive detected and work on Mac again?
- Can I fix this issue without losing my important data?
You are in the right place for a solution!
First, See How Mac Recognizes a WD External Hard Drive
The process of Mac recognizing an external hard drive is a little complicated even though you can't see it. Specifically, when you plug a WD hard drive into a Mac computer, macOS would be notified. Then macOS will call all related hardware and software to read, recognize, and show this hard drive on the Desktop and in Finder, so that finally you can access your data on the drive on your Mac computer.
So, we usually simplify this process in 4 steps:
- The WD hard drive is supplied with power, so that Mac can detect this storage device.
- macOS reads partition information of the WD hard drive.
- macOS recognizes the file system of each volume.
- Users access data on the WD hard drive.
However, if any part of this process goes wrong, hard drive problems like Mac won't recognize your WD hard drive would occur. As a consequence, you can't access, copy, write to or transfer data stored on it.
Now, Follow the Guide to Fix WD hard drive not recognized issue on Mac
Macbook Hard Drive
So, based on the process of Mac recognizing a WD hard drive, we need a thorough check to know which part makes the WD hard drive not working on Mac, and then fix it.
1. Try Quick fixes when WD hard drive is not recognized by Mac
A proper connection is the most basic condition that Mac can access the WD hard drive. Or else the external hard drive would not even show up in Disk Utility. When your Mac can't recognize an external hard drive, you can always do the following quick fixes at the very beginning.
- Make sure the WD hard drive is externally plugged into a wall outlet if it's a WD desktop hard drive like WD Elements Desktop and My Cloud.
- Connect the WD hard drive directly to the computer and do not use a USB Hub.
- Try a different USB cable and port for power and data supply, especially if the My Passport external hard drive is not showing up in Disk Utility.
- Try a different USB-C adapter to connect the WD hard drive if your Mac only has the Thunderbolt 3 port.
- Try to connect the WD hard drive with a different Mac computer to check if the WD hard drive can be recognized on that Mac.
- Try to plug the WD hard drive in to a Windows PC to check if the file system of the WD hard drive is not compatible with Mac.
The WD hard drive lights on but is not recognized by Mac still?
Wait! Do you allow your Mac to show the recognized WD hard drive in the Finder and Desktop?
2. Show the WD hard drive in the Finder and Desktop
Sometimes, you think WD hard drive is not recognized by Mac because the WD external hard drive isn't showing up on Mac, neither in Finder nor on the desktop. However, the fact is that the WD hard drive is detected by macOS but it is not set to show up on Mac.
In this case, you can show the WD hard drive by changing the preferences:
Step 1: Go to Finder > Preferences > General, make sure the 'External disks' option is ticked. This will make the recognized WD hard drive show up on the Desktop.
Step 2: Select Sidebar tab on the top, make sure the 'External disks' option under Locations is also ticked.
The WD hard drive is not working on Mac still?
Well, it seems that Mac really can't recognize the WD hard drive. We need to take advantage of some tools for further check.
3. Update incompatible WD Apps with WD Discovery for Mac
WD Discovery is a desktop software for Mac and Windows for delivering WD software, updates and notifications for WD external hard drives.
When WD hard drive is not recognized, you can download WD Discovery for Mac to update WD Drive Utilities, WD Security, WD Backup, etc. Possibly, your Mac doesn't recognize the WD hard drive because the WD software is not compatible with your macOS.
4. Check if the WD hard drive is password locked
If you are using WD hard drives like My Book Drive and it is not recognized by Mac now, you can check if the hard drive is password protected. macOS can't read the partition information and mount the volumes if the WD hard drive is password locked. You can download and install WD Security to unlock the WD hard drive if a password has been set to protect the hard drive.
The WD hard drive is not encrypted? Then the reason for Mac not recognizing the WD hard drive is that macOS fails to access the partition and file system information. It could be a problem when WD external hard drive used on PS4 extended drive but not recognized.
5. Repair the unrecognized WD hard drive in Disk Utility
Disk Utility is a built-in disk management and repair tool on Mac computers. When a WD hard drive is not recognized or not working due to inner disk errors, you can try to repair the unrecognizable WD hard drive with Disk Utility.
Tips: Before you try to repair the unrecognized WD hard drive in Disk Utility, if the WD hard drive shows up in Disk Utility but not mounted, you can select the Mount option first then the WD hard drive will be mounted on the Desktop.
Step 1: Go to Applications > Disk Utility.
Step 2: Click 'View' and choose 'Show All Devices'.
Step 3: Select the unrecognized WD hard drive from the sidebar.
Step 4: Click on First Aid on the top. Wait while First Aid verifying and fixing possible errors of the WD hard drive.
If First Aid can't repair the external hard drive, or Disk Utility doesn't recognize the volumes of the drive, probably, the WD hard drive could be corrupted caused by bad sectors.
6. Use WD Drive Utilities when WD hard drives not working on Mac
WD Drive Utilities for Mac is a specialized utility for WD hard drives to run drive diagnostics (fix potential drive failures, slow disk performance, and bad sectors), Manage RAID configuration (For RAID supported models), Erase and format WD hard drives, etc.
If a WD hard drive won't work normally on a Mac due to bad sectors or other parameter errors, you can download WD Drive Utilities for Mac to have a diagnosis of what happens to your hard drive.
Step 1: Install WD Drive Utilities on your Mac and then launch it.
Step 2: Plug the unrecognizable WD hard drive into the Mac.
Step 3: Click on 'Diagnose' and choose 'Run Quick Drive Test' to check the WD drive completely.
7. Fix the unrecognized WD hard drive by reformatting
If the unrecognizable WD hard drive can't be repaired by WD Drive Utilities, the file system of the WD hard drive might be seriously damaged or corrupted. In this case, you have to reformat or erase this WD hard drive. Before that, it's necessary to recover lost data from unrecognized WD hard drive with free hard drive data recovery software for Mac, like iBoysoft Data Recovery for Mac, to avoid data loss.
iBoysoft Data Recovery for Mac is professional in external hard drive data recovery on Mac. It supports Western Digital, Seagate, Toshiba, Samsung, and hard drives of other manufacturers. This data recovery software can recover lost data when hard drive is unrecognized, unmountable, unreadable, corrupted on Mac. Besides, iBoysoft Data Recovery for Mac can recover lost data from Macintosh hard drive, USB drives, Pen drives, SD cards, memory cards, CF cards as well as other storage devices.
Tutorial to recover lost data from unrecognizable WD hard drive with iBoysoft Data Recovery for Mac
Step 1. Download, install, and launch iBoysoft Data Recovery for Mac.
To recover your important photos, videos, music, documents, emails from this unrecognizable WD hard drive, you can free download and install iBoysoft Data Recovery for Mac on your Mac.
Step 2. Scan for lost data on the WD hard drive.
When the data recovery software is launched, you will see your unrecognizable WD hard drive in the interface. You need to select this corrupted WD hard drive and then click the 'Scan' button to scan for data on this drive.
Step 3. Preview and recover files.
When WD hard drive is corrupted, you can't access your data on this drive. But you can use iBoysoft Data Recovery for Mac to preview the data on the drive, which will help you make sure your files are not corrupted before you finally click 'Recover' to recover them.
Tutorial to reformatting WD hard drive that is not recognized by Mac
1. Go to Disk Utility and select the unrecognized WD hard drive from the sidebar.
2. Click on Erase on the top.
3. Follow the instructions to finish the reformatting process.
Hard Drives For Macbook Pro
After reformatting WD hard drive process finished, you will hopefully see the WD hard drive recognized and showing up on Mac correctly.
However, if the external hard drive is not showing up in Disk Utility at all, the great chance is that the WD hard drive is physically broken. As a result, Mac can't read and recognize it. In this case, we advise you to check if the serial number of the WD hard drive is still in warranty so that you can ask for a repair or replacement service.
WD provides no-limited warranty unless your WD hard drive was purchased from an authorized distributor or authorized reseller like Amazon. So, if your WD hard drive is dead for disk corruption, please free free to contact their support team for warranty status review and product replacement.
Conclusion
In the issue of WD hard drive not recognized, be it on Mac or Windows, data rescue should come first. This is also important when USB flash drives, SD card, or other external hard drives that are not showing up on Mac.
You can recover data from the unrecognized hard drive with free data recovery software like iBoysoft Data Recovery for Mac. Then, you can fix the error in different ways without worrying about data loss.
Optimized Storage in macOS Sierra and later* can save space by storing your content in iCloud and making it available on demand. When storage space is needed, files, photos, movies, email attachments, and other files that you seldom use are stored in iCloud automatically. Each file stays right where you last saved it, and downloads when you open it. Files that you’ve used recently remain on your Mac, along with optimized versions of your photos.
* If you haven't yet upgraded to macOS Sierra or later, learn about other ways to free up storage space.
Find out how much storage is available on your Mac
Choose Apple menu > About This Mac, then click Storage. Each segment of the bar is an estimate of the storage space used by a category of files. Move your pointer over each segment for more detail.
Click the Manage button to open the Storage Management window, pictured below. This button is available only in macOS Sierra or later.
Manage storage on your Mac
The Storage Management window offers recommendations for optimizing your storage. If some recommendations are already turned on, you will see fewer recommendations.
Store in iCloud
Click the Store in iCloud button, then choose from these options:
- Desktop and Documents. Store all files from these two locations in iCloud Drive. When storage space is needed, only the files you recently opened are kept on your Mac, so that you can easily work offline. Files stored only in iCloud show a download icon , which you can double-click to download the original file. Learn more about this feature.
- Photos. Store all original, full-resolution photos and videos in iCloud Photos. When storage space is needed, only space-saving (optimized) versions of photos are kept on your Mac. To download the original photo or video, just open it.
- Messages. Store all messages and attachments in iCloud. When storage space is needed, only the messages and attachments you recently opened are kept on your Mac. Learn more about Messages in iCloud.
Storing files in iCloud uses the storage space in your iCloud storage plan. If you reach or exceed your iCloud storage limit, you can either buy more iCloud storage or make more iCloud storage available. iCloud storage starts at 50GB for $0.99 (USD) a month, and you can purchase additional storage directly from your Apple device. Learn more about prices in your region.
Optimize Storage
Click the Optimize button, then choose from these options.
![Drive Drive](/uploads/1/2/6/4/126426402/986210872.jpg)
- Automatically remove watched movies and TV shows. When storage space is needed, movies or TV shows that you purchased from the iTunes Store and already watched are removed from your Mac. Click the download icon next to a movie or TV show to download it again.
- Download only recent attachments. Mail automatically downloads only the attachments that you recently received. You can manually download any attachments at any time by opening the email or attachment, or saving the attachment to your Mac.
- Don't automatically download attachments. Mail downloads an attachment only when you open the email or attachment, or save the attachment to your Mac.
Optimizing storage for movies, TV shows, and email attachments doesn't require iCloud storage space.
Empty Trash Automatically
Empty Trash Automatically permanently deletes files that have been in the Trash for more than 30 days.
Reduce Clutter
Reduce Clutter helps you to identify large files and files you might no longer need. Click the Review Files button, then choose any of the file categories in the sidebar, such as Applications, Documents, Music Creation, or Trash.
You can delete the files in some categories directly from this window. Other categories show the total storage space used by the files in each app. You can then open the app and decide whether to delete files from within it.
Learn how to redownload apps, music, movies, TV shows, and books.
Where to find the settings for each feature
The button for each recommendation in the Storage Management window affects one or more settings in other apps. You can also control those settings directly within each app.
- If you're using macOS Catalina, choose Apple menu > System Preferences, click Apple ID, then select iCloud in the sidebar: Store in iCloud turns on the Optimize Mac Storage setting on the right. Then click Options next to iCloud Drive: Store in iCloud turns on the Desktop & Documents Folders setting. To turn off iCloud Drive entirely, deselect iCloud Drive.
In macOS Mojave or earlier, choose Apple menu > System Preferences, click iCloud, then click Options next to iCloud Drive. Store in iCloud turns on the Desktop & Documents Folders and Optimize Mac Storage settings. - In Photos, choose Photos > Preferences, then click iCloud. Store in iCloud selects iCloud Photos and Optimize Mac Storage.
- In Messages, choose Messages > Preferences, then click iMessage. Store in iCloud selects Enable Messages in iCloud.
- If you're using macOS Catalina, open the Apple TV app, choose TV > Preferences from the menu bar, then click Files. Optimize Storage selects “Automatically delete watched movies and TV shows.”
In macOS Mojave or earlier, open iTunes, choose iTunes > Preferences from the menu bar, then click Advanced. Optimize Storage selects “Automatically delete watched movies and TV shows.” - In Mail, choose Mail > Preferences from the menu bar, then click Accounts. In the Account Information section on the right, Optimize Storage sets the Download Attachments menu to either Recent or None.
Empty Trash Automatically: From the Finder, choose Finder > Preferences, then click Advanced. Empty Trash Automatically selects “Remove items from the Trash after 30 days.”
Other ways that macOS helps automatically save space
Reformatting Wd My Book Hard Drive For Mac
With macOS Sierra or later, your Mac automatically takes these additional steps to save storage space:
- Detects duplicate downloads in Safari, keeping only the most recent version of the download
- Reminds you to delete used app installers
- Removes old fonts, languages, and dictionaries that aren't being used
- Clears caches, logs, and other unnecessary data when storage space is needed
How to free up storage space manually
Even without using the Optimized Storage features of Sierra or later, you can take other steps to make more storage space available:
- Music, movies, and other media can use a lot of storage space. Learn how to delete music, movies, and TV shows from your device.
- Delete other files that you no longer need by moving them to the Trash, then emptying the Trash. The Downloads folder is good place to look for files that you might no longer need.
- Move files to an external storage device.
- Compress files.
- Delete unneeded email: In the Mail app, choose Mailbox > Erase Junk Mail. If you no longer need the email in your Trash mailbox, choose Mailbox > Erase Deleted Items.
Learn more
- The Storage pane of About This Mac is the best way to determine the amount of storage space available on your Mac. Disk Utility and other apps might show storage categories such as Not Mounted, VM, Recovery, Other Volumes, Free, or Purgeable. Don't rely on these categories to understand how to free up storage space or how much storage space is available for your data.
- When you duplicate a file on an APFS-formatted volume, that file doesn't use additional storage space on the volume. Deleting a duplicate file frees up only the space required by any data you might have added to the duplicate. If you no longer need any copies of the file, you can recover all of the storage space by deleting both the duplicate and the original file.
- If you're using a pro app and Optimize Mac Storage, learn how to make sure that your projects are always on your Mac and able to access their files.