Dec 16, 2020 • Filed to: Solve Mac Problems • Proven solutions
'Okay, so I've been hearing about how great WD's Passport is, so I grabbed one to find out for myself how true this is. But I hear to use it on Mac, I have to format it first. How do I do that, exactly? A little help, people.'
This is a question often asked by Mac users only. Windows users don't need to do much other than plug in the WD Passport to use it, but for Mac, it's not as straightforward as that.
To use a WD my passport on Mac, you need to know how to reformat it. The same goes for using any kind of WD drive on Mac. Benefits of WD my Passport. The simple fact is, you'll be very happy with the shape, weight, look, and even feel of the WD My Passport drive. MY PASSPORT FOR MAC USER MANUAL Unlocking the Drive with the WD Drive Unlock Utility Whenever you connect your password-protected drive to a computer that does not have the WD Security or WD Drive Utilities software installed, you can use the WD Drive Unlock utility to unlock the drive there. Page 20: Changing Your Password.
The difference in Mac and Windows' native format systems are to blame for this. But don't fret, because this article will show you simple ways to go about formatting your WD Passport so you can easily use it on both Mac and Windows.
Part 1 - Overview of WD My Passport File System
- Enter ‘on your web browser and select My Passport from the list of options. Choose the WD My Passport model from the list of models displayed on the screen. The links, such as Product Overview, Quick Installation Guide, User Manual, etc., are displayed.
- Always register your My Passport for Mac drive to get the latest updates and special offers. You can easily register your drive using the WD Discovery software. Another way is to register online at register.wdc.com My Passport for Mac User Manual 3.
- A WD My Passport formatted with Mac file system will be a dud on the Windows and vice-versa. Thankfully, MS-DOS FAT32 and ex-FAT formats have survived to date, and these are the file system to make your WD My Passport work with a Mac and a Windows PC simultaneously.
Technology has reached a point where it pretty much seeps into every aspect of our daily life. We're always using our phones and computers to send messages, host meetings, shop online, etc.
Of course, there is much exchange of valuable data as these happen, and where you keep this data is extremely important; that's where WD's My Passport comes in.
My Passport is a hard drive that's trustworthy and portable enough to be given a 5-star rating on almost any website you check. Coupled with the WD Backup TM app and password protection feature, My Passport helps to keep your data safe. That being said, situations arise when you'll need to format or reformat the drive.
Default File System of WD my passport
Western Digital (WD) hard drives are formatted with NTFS (Windows) or HFS+ (Mac) by default to make them more compatible with both operating systems.
Granted, FAT32 is less efficient than NTFS in Windows, but it has inherent benefits too, like its compatibility. And to connect your NTFS-formatted My Passport to macOS, you'll need to utilize a formatting tool.
This is especially true if you regularly use your WD drive on both Windows and macOS. So always remember to check if the drive is formatted or not.
Why WD my Passport can't be used on mac?
A significant number of users trust West Digital hard drives. Their auto backup, password protection, and high reliability are second to none.
But nothing is perfect, right? Sometimes when you connect the WD My Passport drive to your Mac, it's grayed out in Disk Utility.
The drive's external light can be on too but it still doesn't work. Worse still, it could become unreadable on your Mac. You know what that means, right? Your data can't be accessible now.
What Are the Reasons for My Passport Not Showing Up on Mac?
More often than not, an external hard drive doesn't show up on Mac simply because your Mac's USB cable or USB port is bad. But the following factors may also contribute to WD not showing up.
- Latest macOS update
What happens here is when you update your macOS to the latest build or release, issues of incompatibility could arise. So, you might have to update the WD My Passport's drivers to at least meet the minimum requirements of the newly-installed macOS.
- Device malfunction
The simple fact is, your Mac could malfunction due to one error or another, and that could tamper with how your macOS identifies your WD My Passport. Computers are susceptible to unexpected or unforeseen glitches and errors, so never rule this out as a possible cause.
- Anti-virus
Yes, an anti-virus is meant to protect your system, but it can also have 'side effects' that won't bode too well for it. For example, most anti-virus is notorious for identifying laptop games as a virus, even though they aren't. Sometimes, they prevent the games from launching.
They can also stop some software from starting. This applies to your hard drives too.
Likewise, the antivirus could stop your system from accessing your WD Passport, perhaps because there is already a virus in it. Thus, it's imperative you install the right anti-virus that will work well and won't tamper with your system's settings too much,
- Virus
Not much needs to be said because everyone knows the kind of damage virus is capable of. There's a virus out there that can even hide your hard drive. So even if you plug it into your My Passport into your Mac, you won't see it.
- Motherboard errors
Without a motherboard, a system is pretty much a screen and keyboard. So, if your Mac's motherboard suffers software or hardware damage, almost nothing will work properly, and that includes your USB ports. So, your drive, even if it's functioning properly, might not even be recognized.
- WD My Passport causes damage or corruption
This time, the problem stems from your WD My Passport. Maybe the drive fell or a malfunctioning system corrupted it. Either of these issues could lead to the drive malfunctioning or not showing up when you plug it into your Mac.
Part 2 - How to Format WD my Passport for Mac?
The simple step-by-step guide below will show you how to format your WD My Passport on your computer, so pay attention. The information you'll find here touches on formatting and reformatting WD's My Passport for your Mac.
- Login into your Mac
Just turn on your Mac and when it boots up, plug in your My Passport drive to your WD. Your WD My Passport drive will appear as a rectangular, yellow icon on your desktop (it looks just like the image below).
- Navigate to Finder if Your Drive Isn't Visible
If your My Passport drive doesn't turn up for some reason, click on 'Finder', then select 'Preferences'.
- A small window will open up. Make sure you tick the checkboxes 'Hard Disks' and 'External Disks.'
- Your WD My Mac Passport drive should now be running on your screen.
- Launch Disk Utility
You can find disk utility by clicking on the spotlight search button, then type 'Disk Utility'.
- Highlight 'Disk Utility', then double-click it.
- Access your Drives
You'll see your internal and external hard drives on the left-hand side of the Disk Utility window.
- Click on the dropdown arrow to expand or collapse the drives on the list.
- Look under the 'External' category and you'll find your My Passport drive there. If it has not appeared, your Mac's USB port could be malfunctioning. So, unplug your drive and restart your Mac. That will probably fix the issue.
- Make sure you have your drive selected. By the way, choose the first drive you see on the list; you know, the one at the top. Doing otherwise might lead to issues when formatting the WD Passport for Mac.
- Format Your Drive
Find the 'View' button at the top left of your Disk Utility window and click it. A drop-down menu will open up.
- Remember, what comes next is formatting. So, make sure your files have been copied off the drive if there are any on it.
- Click on 'Erase'
- In the small window that pops up, you'll have to input a name for the My Passport drive first.
- You'll find it useful to give a name to your drive to show what you'll be using the drive for.
- Right below that is the 'Format' field. There are a few formats you can choose from but you only need one.
- Choose Format Type
Select 'Extended Mac OS (Journaled)'.
This is the file system you will need if you want to be able to easily transfer files back and forth between your Mac and you're My Passport drive. The format is also what makes the drive compatible with Time Machine for backup on your Mac
- Next, for the Scheme option, select 'GUID Partition Map.'
- Finally, click on the 'Erase' button. It will just take a few seconds for the drive to be formatted. Once, look at your desktop and you'll see the icon of WD my Passport on it.
- Eject Your Drive
Oh, and always remember to safely eject your drive before unplugging its cable. Failure to do this could lead to the driver crashing or suffering some issues.
- To eject your WD my Passport drive from your Mac, just right-click on its icon on your desktop.
- In the dropdown menu you see, click on 'Eject'.
Part 3 - Recover Accidentally Formatted WD Files
If you are unable to locate or access the data on your Western Digital (WD) external hard drive, it can be devastating, particularly when the lost data contains precious images and invaluable backups.
The tips and shortcuts below will give you the necessary info and tidbits you need to format WD elements for mac. The loss of data from your WD hard drive can be caused by numerous things: Accidental deletion, disk formatting, computer corruption or damage, etc.
But all that doesn't mean you can't get your data back. There are some great solutions you can utilize to recover deleted, corrupted, or lost files and you'll learn of them before the end of this post.
Why Formatted Data Can Be Recovered?
It makes perfect sense for you to worry if you lose your data, but sometimes, formatting becomes necessary too, doesn't it?
- Accidental Deletion or Redesign
Sometimes when you reinstall the operating system, the drive or partition gets deleted, even if you don't intend for it to happen.
- Unexpected Data Loss Situations:
Due to carelessness or haste, some people can unknowingly format or delete the wrong partition. It takes little more than a few clicks for the damage to be done, so you must exercise caution here.
Then, of course, you can't rule out other possible causes like a virus, power failure, or hardware damage to your drive. They are all likely causes of data loss.
When it comes to Western Digital disk recovery, the first option that comes to mind is using third party data recovery applications. This is considerably better than the complicated and time-consuming manual data recovery options out there.
Restoring lost WD data takes only minutes, depending on the size of the drive and the amount of data to be recovered. The data recovery tool in question supports all Western Digital hard disk drives, such as My Book Pro, My Book, WD Elements, My Book Studio, etc.
Sometimes, there will be a need to learn how to reformat my passport for Mac, so once you're acquainted with formatting, you should enlighten yourself on how to reformat WD my passport for Mac.
How to Recover Formatted WD Drive Files using Recoverit Data Recovery?
If you know anything about data recovery, then it's very likely you're familiar with Recoverit Data Recovery. If you aren't, you've been missing out a lot!
Recoverit Data Recovery is a data recovery tool that's extremely capable of recovering data or any kind of file you lost from your drive. So, if you lost your data via formatting, accidental deletion, virus attacks, and more, Recoverit will get them all back.
Recoverit's data recovery steps are often very similar irrespective of which type of system you own; Windows or Mac. But since you're dealing with Mac today, that will be the focus here. So, go on and follow the 3 steps below to get back data on a Mac.
- Select the WD drive
- Scan the drive
- Preview and retrieve data
Step 1: Select the WD Drive
Start Recoverit and look under the 'External Devices' section. You'll see some drives connected to your Mac. Select the WD drive and click on 'Start'.
Step 2: Scan Your WD Drive
Recoverit will start scanning the drive. Look to the left of the software and you'll see checkboxes that detail the types of files the software is finding. You can tick the checkboxes if you're only looking for particular files; that will actually make the scan process faster, but it's just an option.
Step 3: Preview and Recover Pen Drive Data
Once the scan ends, you'll see the list of files Recoverit found. You can even preview them if you want. Recovering the files is pretty easy too.
Just tick the ones you want to recover or tick one checkbox that highlights everything. For the last step, click 'Recover'.
All you have to do is wait for all your files to be recovered. See? Easy as pie. But here's an important tip: Don't save the files to the same WD drive they are being recovered from.
How to use WD my Passport on Mac?
Files and getting bigger and bigger, so you'll need the best drive out there to capable of storing these files, right? There are countless hard drives you can choose from but the keyword here is the 'best', and WD is exactly that.
If you need a new backup solution for your photos or videos, the Western Digital My Passport Essential SE 1 TB drive can more than handle the job. It's a compact external hard drive with 1 TB capacity coupled with high transmission speeds.
To use a WD my passport on Mac, you need to know how to reformat it. The same goes for using any kind of WD drive on Mac.
Benefits of WD my Passport
The simple fact is, you'll be very happy with the shape, weight, look, and even feel of the WD My Passport drive. This 1 TB size is wonderful and can comfortably store even the large Digital SLR data files for many years to come.
For those who really love music, all their favorite songs can be stored on this drive too. These large and powerful drives even find use in hospitals and educational facilities, among other places.
The WD Passport is also patronized by computer programmers, innovative artists, and several other professionals in various business fields.
What makes this external hard drive so reliable and easily the best portable drive is the fact it was manufactured by the popular Western Digital Company. It's a trusted company that has filled homes, offices, and institutions with hard drives for over 20 years; that's over 20 years of experience and satisfied customers!
Because of how compact the drive is, it easily fits into your shirt or purse's pocket. And the fact it weighs just about 0.44 pounds means it won't feel uncomfortable or be obtrusive in any way.
This new device is excellent and doesn't need external power, eliminating the need for an extra power cord. It also works almost soundlessly, so no annoying grinding noises to distract you while you work.
If your WD drive is plugged into a USB 3.0 port, you can easily access and save files 3 times faster than what USB 2.0 port is capable of. To elaborate, you can upload a 2-hour HD video in just 5 minutes! But if it was USB 2.0, it will take at least 13 minutes or more. The difference is clear, isn't it?
Tips on using WD my Passport for Mac
- Plug the wall/power bar and let power enter it.
- Plug one end of the USB cable into the drive and the other end in your system. If you have a USB 3.0 port on your system (it's usually blue, especially for Windows systems), use it because it can make a big difference in the speed of the transfer of files.
- If you're using Windows, the drive will now be turned on, showing up in 'My Computer'. It might take a few seconds to do this, so be a little patient.
- If you're on a Mac, navigate to 'My Machine' to see the new hard disk. It's going to be called 'My Book'.
- Double-click it and select 'Create WD Applications'. This will start the Backup software installation process. If you don't see the 'WD Apps Setup', search for a folder called 'WD Apps for Windows'. But if you're using macOS or OS X, you'll see 'WD Apps for Mac'.
- Only follow the Program Setup prompts. Don't stray from them and tamper with instructions you don't understand.
Final words
So, there you have it. A simple yet effective tutorial on making your WD drive work on Mac. Remember that the most important thing here is the safety of your files, so it is highly recommended you use a WD My Passport because it's a drive that promises nothing but the highest quality.
And if anything does happen to your WD drive and you lose your files, there's never a need to worry because Recoverit is ready and willing to get all those files back.
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How do I fix My WD Passport Ultra not showing up on my computer?'
When your WD My Passport Ultra hard drive or external hard drive is not showing up, you can neither access nor use the drive on your computer. And don't worry.
Follow this guide, you'll learn the causes and how to fix the WD Passport Ultra external hard drive not showing up error on your own.
Here is the complete guide to making your WD Passport external hard drive detected again:
- Part 1. Check The State of WD Passport External Hard Drive in Disk Management
- Part 2. Fix WD My Passport External Hard Drive Not Showing Up Error - 6 Fixes
- Part 3. Get Data Off and Format WD External Hard Drive to Work Again
Some of you may also want to learn what causes the wd external hard drive not showing up issue on the computer. Continue reading and check it out.
Why Is My WD Passport Not Showing UP
We consulted many experienced users and IT professionals, and we concluded the causes below. Check out why is your WD Passport Ultra external not showing up:
- 1. A faulty USB port/cable, or a damaged USB hub on PC
- 2. No drive letter is assigned to WD Passport drive
- 3. Corrupted file system or bad sectors makes WD drive unreadable
- 4. WD drive driver is out of date
- 5. Universal USB controllers drivers are outdated
These causes may also lead to some of your other devices malfunctioning, such as:
So how to fix these errors and make your WD Passport Ultra external hard drive show up on PC again? Follow through the tutorials below to get rid of this issue immediately.
Part 1. Check The State of WD External Hard Disk in Disk Management
Connect the WD external hard drive to your computer via the USB cable. Follow steps here to check the state of your WD external hard drive in Disk Management:
Step 1. Press Windows + R keys, type diskmgmt.msc in the Run box, and click 'OK'.
Step 2. In Disk Management, locate and check the state of your WD external hard drive.
Part 2. Fix WD My Passport External Hard Drive Not Showing Up Error
Check the state of your not showing up or not detected WD My Passport Ultra external hard drive and refer to the right fix to make your drive work normally again.
Tips to Remove WD External Hard Drive Not Showing Up/Not Detected Error:
| Disk Status in Disk Management | Workable Solutions |
|---|---|
| 1. Disk Shows Up, No Drive Letter | Fix 1. File system is normal, add new drive letter...Full steps Fix 2. File system is '*Others', fix file system...Full steps Fix 3. File system is 'Unknown', sent for repair...Full steps |
| 2. Disk Show Up, Not In File Explorer | Fix 4. Contact EaseUS support team for help...Full steps |
| 3. Disk Not Show Up | Fix 5. Change a different USB cable/port or PC...Full steps Fix 6. Update WD external hard drive driver...Full steps |
Pick a respective fix and follow the full guide to fix your WD My Passport external hard drive not showing up issue now.
Fix 1. Add New Drive Letter to Make WD Passport External Hard Drive Showing Up
Applies to: Fix WD passport external hard drive not showing up error due to drive letter confliction.
If your WD displays as 'New Volume' with no drive letter in Disk Management, it won't show up in File Explorer. Don't worry.
You can change or add a new drive letter so to make WD passport detectable and accessible again in Windows PC:
Step 1. Press Win + R keys, type diskmgmt.msc in the Run dialog, click 'OK' to open Disk Management.
Step 2. Right-click on WD drive which fails to show up and choose 'Change Drive Letter and Paths...'.
Step 3. Click 'Add', set a new drive letter to assign to the WD external drive, and click 'OK'.
If the WD drive has already been assigned with a letter, click 'Change' to choose another letter for it.
After this, restart your PC and check if you can visit the WD external hard drive in Windows File Explorer.
Fix 2. Fix Corrupted File System/Bad Sector That Makes WD External Not Showing Up
Applies to: Fix WD passport external hard drive not showing up due to file system error or bad sectors.
If the system files are corrupted or the WD device contains bad sectors, Windows disk management may detect it as '*Others' or RAW. Your computer may not even able to detect it from File Explorer.
EaseUS partition manager software with its Check File System feature can help. As long as your Disk Management can detect it, you can apply this tool to fix the corrupted file system and bad sectors on WD hard drive.
Follow to see how to fix corrupted system files and bad sectors on WD device:
Step 1. Open EaseUS Partition Master on your computer. Then locate the disk, right-click the partition you want to check, and choose 'Check File System'.
Step 2. In the Check File System window, keep the 'Try to fix errors if found' option selected and click 'Start'.
Step 3. The software will begin checking your partition file system on your disk. When it has completed, click 'Finish'.
After this, you can check the drive. If your files were missing, move to Part 3 and apply reliable data recovery software to bring back all your WD external hard drive data.
Fix 3. Send 'Unknown' & Not Detected WD External Hard Disk for Repair
If your WD external hard drive displays as 'Unknown' in disk management, the last thing you can try is to send the disk for repair.
You have two options for this issue:
- Option 1. Beyond the Warranty: Send WD external disk for repair in a local repair center
- Option 2. Within the Warranty: Send WD external disk back to its manufacturer
Fix 4. Contact EaseUS Support Team for Help
If your WD external hard drive is detected in Disk Management but not showing up in File History, you have two choices:
- #1. Refer to External Hard Drive Shows Up in Device Manager Not in This PC for help.
- #2. Contact the EaseUS support team for manual service help.
- 1. Unformat the drive
- 2. Repair the RAID, RAW disk or operating system
- 3. Recover lost partition (the one that cannot be recovered by software)
Fix 5. Try a Different USB Cable/Port or PC
When your WD hard drive neither shows up in File Explorer nor Disk Management, you can try to change the USB cable, try another USB port, or a new PC to see if the drive can be read or not.
Step 1. Switch a USB port/cable and replug it to your computer.
If the drive can be read via new a USB cable or on a new PC, then the drive is working fine. The problem is with the USB cable.
Step 2. Reconnect the WD drive via a new USB hub or to a new PC.
- If the WD Passport drive shows up, it is the damaged USB hub that stops WD from showing up.
- If the WD passport is not detected either on your current or the new PC, replace the WD drive with a new one.
Fix 6. Update WD External Device Driver & Reinstall BUS Controllers
When the WD Passport drive is not working, it might be caused by the outdated device drivers. So the best way is to update its driver via the following three paths:
#1. Download and Install WD Device Driver:
Step 1. Connect the problematic WD external hard drive to your PC.
My Passport For Mac Support
Step 2. Right-click on the Windows icon and select 'Device Manager'.
Step 3. Find and expand Disk Drivers, Portable Devices, Universal Serial USB Controllers, or Other devices.
See if the WD external hard drive is shown as an 'Unknown' device.
Step 4. Right-click on Unknown or not working WD external hard drive, select 'Properties'.
Step 5. Go to the Details tab, set Property to 'Hardware Ids'.
Step 6. Right-click the top Value and click 'Copy'.
Step 7. Paste it into a browser and search for the correct device driver.
Step 8. Find and download the correct WD device driver and install it on your PC.
After this, restart your computer. And everything shall work fine with your WD My Passport Ultra drive.
#2. Update WD Device Driver from Device Manager:
Step 1. Right-click on the Windows icon and select 'Device Manager'.
Step 2. Expand Device Manager and right-click the WD My Passport Ultra drive.
Step 3. Select 'Update driver'.
Step 4. Select 'Search automatically for updated driver software', wait for the process to complete.
#3. Uninstall/Reinstall USB Controllers
When the Universal USB Bus Controllers are outdated, it may also stop your WD passport from being detected or showing up. So you can try to uninstall and reinstall USB controllers:
Step 1. Right-click on the Windows icon and select 'Device Manager'.
Step 2. Expand Universal Serial Bus controllers, right-click on USB controllers of the WD drive, and select 'Uninstall device'.
Repeat to uninstall each USB controller one by one.
Step 3. Restart the computer and Windows will automatically reinstall the USB controllers of your WD drive.
After this, you shall be able to visit and access saved data on your WD Passport Ultra drive normally by then.
- Notice:
- If the WD external hard drive is still not showing up in both File Explorer and Disk Management after trying all these solutions, send your drive for repair as shown in Fix 3.
Part 3. Get Data Off WD External Disk and Format It to Work Again
If your WD hard drive shows up and you can access the disk again. Take the last guide in this part to fully protect your files and make the WD external hard drive viable for saving and editing data again.
#1. Get Data Off WD External Hard Drive
Here are two ways that you can fully get files from your WD external hard drive:
Wd My Passport For Mac Manual Download
- 1. Open and copy data from your WD hard drive to another storage device as a backup.
- 2. Recover lost files from WD drive with EaseUS file recovery software.
Note that, if you lost some valuable files during the process, don't worry. Professional file recovery software can scan and bring back your files in 3 steps:
Step 1. Choose the external hard drive
Since you're going to recover data from the external hard drive, run EaseUS Data Recovery Wizard and choose the exact drive where you lost data. Click Scan.
Step 2. Scan for lost data
The software will start immediately to scan all over the selected drive for all lost data. During the scan, you could see more and more data showing up in the results.
Step 3. Preview and recover data
After the scan is over, check the scan results for the desired data. You can preview the file by double-clicking on it. Click Recover and choose another location to save the recovered data.
Remember to save the recovered files to another secure location and then move to the next guide to format your WD My Passport external hard drive to usable again.
#2. Format WD External Hard Drive to Usable
Here, you may also let EaseUS Partition Master help. It's easy and efficient in formatting a disk:
Step 1. Launch EaseUS Partition Master, right-click the partition on your external hard drive/USB/SD card which you want to format and choose the 'Format' option.
Step 2. Assign a new partition label, file system (NTFS/FAT32/EXT2/EXT3), and cluster size to the selected partition, then click 'OK'.
Step 3. In the Warning window, click 'OK' to continue.
Step 4. Click the 'Execute Operation' button in the top-left corner to review the changes, then click 'Apply' to start formatting your external hard drive/USB/SD card.
After this, you can save the data back to your WD external hard drive again.
Make Your WD External Hard Drive Show Up and Work Now
On this page, we explained why is WD My Passport Ultra external hard drive not showing up on Windows PC and provided 6 practical fixes for you to follow and make the drive show up again.
As a beginner, we suggest that you follow the whole guide one by one. These fixes also work to resolve the same issue on all brands of external hard drive, internal hard drive, USB, or SD card.
Now, it's your turn. Take steps to fix your not showing up WD external hard drive and make it work again without losing any data.
People Also Ask
For further issues related to the WD passport, check the questions and answers below. You'll get a satisfying answer:
1. WD My Passport not showing up on Mac
If you are having a similar issue that WD My Passport external or internal hard drive not showing up on Mac, you can try the following tips as listed here for help: （Some are similar as shown on this page)
Wd My Passport For Mac 1tb User Manual
- #1. Reconnect WD Passport to Mac
- #2. Change WD Passport drive letter
- #3. Remount WD Passport to Mac
- #4. Update WD Passport drive driver
- #5. Format WD My Passport on Mac
2. How to use WD Passport on Windows 10?
For a new WD Passport: Connect Passport to Windows 10 PC > Open Disk Management and Initialize Disk > Create a New Partition on WD Passport drive.
For a used WD Passport: Connect it to Windows 10 > Open it in File Explorer to use it. If you need more space, delete some useless files on it to free up space.
3. Why is my external hard drive not showing up?
Accordingly, many reasons may cause your external hard drive not showing up. Here is a list of major reasons:
- The external hard drive is not connected to the PC correctly
- Faulty USB cable or USB hub
- External hard drive is not initialized
- External hard drive is doesn't contain a volume
- External hard drive has no drive letter
- External hard drive contains file system error, bad sectors, or virus
Wd My Passport For Mac Manual
For a resolution, follow to External/Internal Hard Drive Is Not Showing Up in Windows 10/8/7.