Cannot Recognize External Hard Drive

If you select this option, this hard disk will not be recognized by Windows versions earlier than and including Windows XP. Check the Disk Management window to verify that the disk is initialized. If it is, the status row for that disk at the bottom of the window should indicate that the disk is Online. The fix most people and forums were suggesting was that the file system type of the USB flashdrive or the external hard drive was not compatible with the device. Many people had suggested that some Blu Ray Players and TVs will only recognize FAT32 formatted disks, and others said that some devices will only recognize NTFS formatted disks. If there are no sounds, most likely it is dead and you cannot do anything about it. In this case, the best solution is to restore all the data from it (it is better to use this drive as an external drive) and buy a new hard drive. For recovery, DiskInternals Partition Recovery will help you.

1. Cannot Recognize External Hard Drive
2. Windows 10 Does Not See External Drive

Summary :

Sometimes, when you connect an external hard drive to your computer, you may find it fails to show up. The external hard drive not showing up problem occurs frequently on Windows PC or Mac, and it could lead to data loss.

There are some useful fixes to the external hard drive not detected on Windows 10. Please read this page offered by MiniTool to know how to access the drive without data loss.

External Hard Drive Not Showing Up PC

Whether you're plugging in a new hard drive or an old one to your computer, it is possible that you can't see it. Some people even reported that the external hard drive is showing up in devices but not in my computer. This is not a rare issue; it has ever happened to many people and will be happening to more.

What are the possible causes for external hard drive not showing up on computer issue?

• Insufficient power supply
• Lack of drive letter
• Outdated drivers
• File system issues
• Partition problems
• Dead USB port
• …

In the following content, I'll mainly discuss external hard drive not showing up/recognized on Windows 10 in 2 different situations. After that, I'll tell you what do I do if my hard drive is not detected.

What to Do When You Can't See External Hard Drive

Many people have the same experience – they suddenly find an external hard drive won't show up in File Explorer (PC not recognizing external hard drive). What should they do first when the USB hard drive is not showing up? It's to open Disk Management and check.

1. Open Windows search by pressing Win+S.
2. Type disk management.
3. Select Create and format hard disk partitions.
4. Browse the drives list to look for your external disk.

If you find the external hard disk showing up in Disk Management as unallocated/not initialized/offline, it would be easy to fix the external hard drive not recognized problem (refer to Method 2: Check & Fix the Drive in Disk Management below). This is what people described as external hard disk detected but not showing in My Computer.

Seagate external hard drive not showing up.

I know there are a million posts about this issue, but I haven't come across one that fixed my issue and I really don't want to have to shell out a ton of money recovering my data. Running Windows 10 on an Asus K55N and connecting a Seagate Free Agent Go Flex Desk 2TB external drive. When I connect the drive, it shows in Disk Management and the Safely Remove Hardware icon, but I can't get it to populate in File Explorer. I have not tested on another computer, but I have tested with a different USB cable and was able to connect two other external drives. I did the trial of the Seagate Recovery Suite and was able to see all my files listed, I was just hoping to not have to pay to recover the data (if that's what it boils down to, so be it).- said Corey_23 on Tom's Hardware Forum

Please read Recover Data From Disk Shows As Unknown Without Damaging It to learn how to fix this.

WD external hard drive not recognized Windows 10.

Case:

I have a WD My Passport portable USB hard drive which one of my computers can't detect when plugged in. It doesn't show up in My computer, Device Manager or Disk Management. The only way to get the device recognized is to reboot the computer with it connected, enter BIOS (and do nothing), and reboot again. The drive works fine on my other computer. It has the WD Unlocker Software built in.- posted by Lagnaetti on Windows 10 Forums, Drivers and Hardware

Obviously, Lagnaetti finds that his external hard drive is not being detected by My computer, Device Manager or even Disk Management. He wants to know how to fix the external hard disk not detected issue.

WD External Hard Drive Not Showing Up in Disk Management

If the WD external disk shows as unallocated/not initialized/offline, you can make it appear easily by formatting, creating a volume, initializing to mbr/GPT, or setting online. However, if you find the USB WD hard drive not recognized in Disk Management, you should try to fix by restarting computer, changing USB port, enabling legacy USB support, etc.

In fact, there are some cases in which an external hard drive doesn't show up since it has being broken physically. Yet, there are still chances that the unrecognized hard disk can be repaired.

In addition, there are also some people who said their PS4 external hard drive is not recognized or Xbox One external hard drive is not detected/not showing up. I suggest that they connect the external hard drive to the computer and check.

External Hard Drive Still Not Showing Up

When your external hard drive won't show up on PC, you should first go to check it in Disk Manager. If your computer is still not recognizing external hard drive, you need to try the methods mentioned in this part.

How Do I Get Windows 10 to Recognize My External Hard Drive

External hard drive doesn't show up is a hot topic. Many people said they can't find external hard drive on the computer. If you also experience the portable hard drive not showing up (external HDD not showing up) on Windows 10, please try these solutions.

1. Change a USB port.
2. Check the drive in Disk Management.
3. Run the Troubleshooter.
4. Update/uninstall/roll back driver.
5. Reinstall USB controllers.
6. Enable legacy USB support in BIOS.
7. Update system to the latest version.
8. Disable USB selective suspend setting.
9. Update motherboard chipset drivers.
10. Fix the system built-in drivers.
11. Kill virus on the computer and external drive.

Is your external drive not showing up? There are many useful workarounds for fixing the external hard drive not being detected in Windows 10 (how to repair hard disk not detected in Windows 7 is basically the same).

Method 1: Change a USB Port

I find my computer doesn't recognize my external hard drive because the USB port is broken. I tried a different USB port and it worked. If you're connecting via a USB 3.0 port, you can also try a USB 2.0 port. Besides, you should connect the external hard drive directly to your PC.

The USB drive not showing up Windows 10 may also occur when the power supply of a USB port is not sufficient. In this case, I advise you not to use USB hubs because some of them are not able to provide enough power supply to the external hard drive.

Method 2: Check & Fix the Drive in Disk Management

Sometimes, an external hard drive not showing in my computer (Windows Explorer) could appear in Disk Management. How to open Disk Management:

1. Press Windows + X keys.
2. Click on Disk Management option from the pop-up menu.

What prevents a drive from showing up:

• External hard drive Unallocated
• External hard drive Offline
• No drive letter

How to fix the problem in the above 4 cases:

Case 1: create a new volume.

1. Right click on the unallocated space.
2. ChooseNew Simple Volume(or other volume types you need).
3. Click on the Next button in the New Simple Volume Wizard Welcome window.
4. Specify the volume size and click Next.
5. Finish Assign Drive Letter or Path and click Next.
6. Finish Format Partition and click Next.
7. Click on the Finish button in the New Simple Volume Wizard Completing window.
8. Wait for the operation to complete.

Watch how to Create Partition with MiniTool Partition Wizard.

Case 2: Initialize Disk:

1. Right click on the unknown, Not Initialised disk.
2. Choose Initialise Disk from the context menu.
3. Choose a partition style from MBR and GPT and click on the OK button to confirm.
4. Wait for the operation to complete.

Use MiniTool Partition Wizard to Initialize to MBR Disk or Initialize to GPT Disk.

Case 3: set Online:

1. Right click on the disk which shows Offline.
2. Choose Online from the pop-up menu.
3. Wait a second.

Case 4: Change Drive Letter and Paths:

1. Right click on the disk partition which has no drive letter.
2. Choose Change Drive Letter and Paths from the context menu.
3. Click on the Add button in the pop-up window.
4. Assign a drive letter to the partition and click OK to confirm.
5. Wait a second.

Change Drive Letter more easily with MiniTool Partition Wizard.

Do you want to recover your files from external hard drive not detected? If yes, please read the following tutorial.

How to recover files from external hard drive not detected?

Step 1: download MiniTool Power Data Recovery. Then, install and launch it.

Step 2: Choose Removable Disk Drive from the main window and select the external hard drive.

Step 3: click on the Scan button to scan the selected external hard drive.

Step 4: browse the scan results during the scan. Alternatively, you can wait until the end of the scan and then select the files you want to restore.

Step 5: press the Save button and choose another drive with enough free space to store the recovered files.

Step 6: press the OK button to confirm the selection and start external hard drive file recovery.

At last, you can check the recovered files to put an end to the recovery work.

Please read this page if your external hard drive seems dead and you need to recover important data from it:

If you are stuck in finding ways to recover files from dead external hard drive efficiently, this passage will be very helpful.

Method 3: Run Troubleshooter

For USB device not recognized in Windows, there is a useful tool to help: Hardware and Device Troubleshooter.

How to run Hardware and Device Troubleshooter:

1. Open Settings the way you like.
2. Choose Update and Security from Windows Settings panel.
3. Go to the Troubleshoot tab.
4. Scroll down to choose Hardware and Devices from the right pane.
5. Click on the Run the Troubleshooter button.
6. Wait for the detecting to complete.
7. Once the scan is completed, Windows will list the found issues.
8. You should choose the issue you want to fix and click Next.

Method 4: Fix Device Driver Problems

You can open Device Manager to check and fix the issue.

1. Press Start + X keys on the keyboard.
2. Choose Device Manager from the pop-up menu.
3. Expand Disk drives option.
4. Right click on the problematic drive.
5. Choose from Update driver, Uninstall device and Properties.
6. Finish the rest steps by looking at system prompt.

• The Update driver feature helps to fix the USB drive not recognized problem due to a corrupted/outdated device driver.
• The Uninstall device feature is used to uninstall your USB external hard drive with the issue. After that, you should remove the USB device from the computer and then reconnect it after at least 1 minute. This is useful when your USB driver has become unstable or corrupt.
• The Properties feature will help you further diagnose the problem by looking at the error Besides, you can choose to Roll Back Driver by shifting to Driver tab after clicking Properties.

Method 5: Reinstall USB Controllers

Also, you should open Device Manager using the above method or other ways you like. Then, finish the following steps:

1. Find and expand Universal Serial Bus controllers.
2. Right click on a device and choose Uninstall device from the context menu.
3. Click on the Uninstall button in the pop-up window.
4. Repeat step 2 and step 3 to uninstall all devices under Universal Serial Bus controllers.
5. Restart your computer and Windows will install the USB controllers automatically.

Method 6: Enable Legacy USB Support

Sometimes, you may find your hard disk not detected in BIOS. This may be caused by the disabled Legacy USB Support.

How to enable USB support:

1. Restart your PC.
2. Press the corresponding button to enter the BIOS utility.
3. Shift to Advanced tab.
4. Choose USB Configuration.
5. Select Legacy USB Support and set it to be Enabled.
6. Exit and save changes.

It's not an easy task to recover data from a hard disk that is not detected in BIOS especially when the disk is an internal one. The good news is MiniTool Power Data Recovery bootable edition provides an easy way to recover data when the PC won't start. As for how to recover data from undetected internal hard disk step by step, please read:

If you're stuck in the data recovery from corrupted internal hard disk, the solutions and software provided here will be of great help.

Method 7: Install the Latest Windows Updates

This method has the same functionality as the Update driver.

1. Type Windows Update into the Cortana search box.
2. Select Check for updates from the Best match.
3. Click on the Check for updates button and wait.
4. Finish the rest operations according to prompts.

If you find some files get lost after Windows Update, please use MiniTool Power Data Recovery to recover data at once.

Method 8: Disable USB Selective Suspend Setting

1. Type power plan into the Cortana search box.
2. Select Choose a power plan from the search result.
3. Click Change plan settings next to the plan used currently.
4. Click Change advanced power settings.
5. Find USB settings and click on the + button to expand it.
6. Click on the + button to expand USB selective suspend setting.
7. Change Setting to be Disabled.
8. Click on the Apply button to confirm and click on the OK button to close.

Method 9: Install the Latest Chipset Drivers for Motherboard

1. Look for the documentation of your computer to find the name of the motherboard manufacturer.
2. Visit the website of the manufacturer.
3. Find the drivers proper for your motherboard and install it on your computer.

Method 10: Repair the System Built-in Drivers

• Press F8 or another button to enter the safe mode during the boot process; select restart or shut down the computer and power on it later to enter the normal mode (to repair the registry).
• If the problem persists, please enter safe mode again to choose System Restore in order to restore your system to an earlier point when there's no such problem.
• If the problem persists, please use the system disk to repair; open the command prompt, enter SFC / scannow, press Enter and insert the original system disk to repair the system
• If the problem persists, please set the CD-ROM as the first boot device in the BIOS; then, insert the system installation disc and press R key to select repair installation.
• If the problem still persists, I advise you to reinstall your OS.

Method 11: Run Anti-virus Program

If your PC is attacked by virus, unfortunately, any external hard drive connected to this PC will be affected. The virus may cause the external hard drive not showing issue. Please run anti-virus software to kill the virus and get Windows 10 to recognize your external hard drive.

RECOMMENDATION:

To recover data from virus infected external hard drive, you can try using MiniTool Power Data Recovery because of its excellent performance, high security, and simple operations. How to recover files after virus attack:

I feel glad to share solutions with users to help them recover files deleted by virus attack quickly and safely.

How to Fix: External Hard Disk Detected But Not Opening

There are also some people saying that their external hard drive could be detected by Windows, but can't be opened. The most direct reason is the file system problem.

When the file system of your hard drive is not supported by Windows, you won't be able to access the drive. For instance, Windows gives no support for the ext4 file system (designed for Linux) and the HFS + file system (designed for Mac).

After clicking on the drive, you'll be asked to format the disk before you can use it.

• If you choose Format, you should know that all your data saved here will be lost.
• If you choose Cancel, you will see the message: The volume does not contain a recognized file system.

Actually, themost common causes are:

• The file system is damaged.
• The file system is not supported.
• The drive becomes RAW.
• The parameter is incorrect.
• The file or directory is corrupted and unreadable.
• …

2 Methods for Solving External Hard Disk Detected But Not Opening

1. Run CHKDSK in Command Prompt.
2. Reformat the drive by using MiniTool Partition Wizard.

There are two useful methods for fixing the external hard drive detected but not opening error: run CHKDSK and format the drive.

Method 1: run CHKDSK.

1. Type cmd into the Cortana search box on the taskbar (what if Windows 10 taskbar is not working?).
2. Right click on Command Prompt from the search result.
3. Choose Run as administrator from the context menu.
4. Choose Yes in the User Account Control window.
5. Type chkdsk /r * (* stands for the drive letter) and press Enter.
6. Wait for the stages to complete.

Method 2: format the drive.

1. Launch MiniTool Partition Wizard.
2. Select the drive with an unsupported file system.
3. Choose Partition from the menu bar and choose Format from the submenu.
4. Choose NTFS or FAT32 as the new file system.
5. Click on the OK button to confirm.
6. Press the Apply button in the main software window.
7. Choose Yes in the pop-up window to apply pending changes.
8. Wait for operations to complete.
9. Click on the OK button in the Successful window.

Click to see Format Partition Tutorial.

Conclusion

Though it may seem strange, it is not a rare problem that the external hard drive is not showing up/recognized/detected. There are many factors that could lead to this problem. When you find that your external hard drive is not showing up in your computer, please use the methods mentioned above to help your computer recognize the hard drive. You can also refer to this post to learn how to recover data from your external hard drive in different ways.

External Hard Drive Not Showing Up FAQ

Get a data lifeguard for Mac

Most of the time, when you connect an external hard drive to your Mac's USB port, you soon see it mount on the desktop. Apple likes to ensure these are easy to find, so they also appear in the Finder in the left-hand column under Devices, since Mac's treat them the same way as another computer. Adobe premiere pro cs6 audio editing.

However, sometimes, an external hard drive doesn't show up. It's annoying, especially when you need to transfer something right then. And besides, there can be a risk that data on the external USB pen, hard, or flash drive is corrupt, which means you can't transfer what you need between devices at all.

Corrupt data can be one reason your Mac won't recognize an external drive, but there are other reasons too. Let's take a look why this is happening and how you can get an external drive to appear on your Mac and get recover data to access to your documents.

How to fix an external disk drive that won't show up on a Mac

Why an external disk drive is not showing up? There could be a few reasons why a USB flash drive isn't making an appearance.

Open an External Drive Not Showing on Mac

Get a huge set of top utilities for troubleshooting external hard drives not mounting on a Mac

Start with the basics:

1. Check whether the drive is properly plugged in. It sounds obvious, but since this relies on a wire - either a USB cable or HDMI cable - if it's not connected properly then it won't appear on your desktop.
2. Faulty cable. Assuming it's plugged in correctly, not wobbly or loose, the cable could be at fault. Try connecting the same device with a different cable.
3. Damaged USB or flash drive port. It could be a hardware issue with the Mac. If you've got another port, try connecting the device to that one.
4. Reboot your Mac. Sometimes, if a USB disk won't boot, the cause is macOS issue. Hopefully, some data damage that can be fixed by restarting. Choose the Apple menu > Restart. Or press and hold the power button and, when a dialog box appears, click the Restart or press R. Restarting your Mac essentially clears your macOS's memory and starts it up fresh.
5. Incorrectly formatted drive. Not every external drive is optimized for Macs. It could be that you are trying to connect something only fit to interact with Windows devices. If you've got a PC or laptop, it's worth connecting and seeing if you can access the files through another device. The best way to look for an incorrectly formatted drive is to go to
   Apple (in the top toolbar menu) > About This Mac > Storage.
   See if the external drive shows up here. For more information, go to the same menu option, then select System Report.
6. Mac not formatted to display external drives on the desktop. It could be that your Mac already recognizes the device, but just isn't showing its icon on the desktop screen. Even if that is the case, the drive will still appear in the left-hand column of the Finder menu under Devices. You should be able to access your drive that way, and, in the Finder menu under Preferences > General, you can check External Drives to ensure that from now on it shows up on your desktop too.
7. Reset NVRAM. To do this, shut down or restart your Mac, switch it back on and immediately press these four keys together for at least 20 seconds: Option, Command, P, and R. It should look as though your Mac has started again; if it has, release the keys when you hear the second startup chime. Hopefully, the hard drive has shown up now.
8. Check Apple's Disk Utility to see if an external drive is showing up. Disk Utility is within System Preferences, or you can find it using Spotlight. If it is visible, then click the option to Mount, which should make it visible on the desktop and in the External Drives option in the Finder menu.

Unfortunately, if none of those options has worked and the external drive still isn't visible, then it could have crashed, or be well and truly broken. But there might still be a way you can recover the data on the external drive.

How to show connected devices in Finder

1. Go to the Finder menu and select Preferences (Cmd+comma).
2. From General tab tick External disks to ensure that from now on it shows on the desktop.

In the Sidebar tab you can choose which folders and devices will be shown in the left-hand column of the Finder window.

How to add cloud storages to Finder

You can also mount cloud storage as local drive on your Mac. By connecting Google Drive, Dropbox, or Amazon to your computer, you get more space for securely accessing and sharing files. For your ease, add cloud drives to Finder with CloudMounter app, so that you keep them close at hand. You can read detailed instructions on managing cloud storage as local drives here.

Repair the failed external drives with First Aid

If your drive is having problems, you can try to fix them yourself with First Aid and therefore get access to your files. First Aid tool will check the disk for errors and then attempt a repair as needed. It helps to verify and repair a range of issues related to startup HD and external drive problems. If you are able to fix the hard drive or SSD in your Mac (or an external drive) using Disk Utility you will hopefully be able to recover your files.

To run Fist Aid on an external hard drive:

1. Open Disk Utility. You can searching for it using Spotlight Search or via Finder > Application > Utility
2. Check on your external hard drive, click the First Aid tab and select Run to start running diagnostics.

If First Aid successful in fixing errors, the external drive should be available to mount. If the utility unable to repair issues, your drive truly is broken or formatted using a file system that the Mac cannot read - in this way we suggest you follow the next steps to recover data from a damaged disk drive.

How to recover data from a crashed drive

Thankfully, there is an app for that. Disk Drill is the world's premier data recovery software for Mac OS X. Powerful enough to retrieve long-lost, mistakenly deleted files from Macs, external hard drives and USB drives and camera cards.

Get a file recovery app

With Setapp you get a pack of professional tools for file recovery and Mac maintenance.

Cannot Recognize External Hard Drive

An easy way to recover lost files on an external hard drive

Providing you already have Disk Drill Pro version, which you can get automatically by downloading from Setapp:

1. Connect your drive to the Mac.
2. Quit all other applications on the Mac, especially those that may be trying to access the external drive (e.g. iPhoto, Words)
3. Launch Disk Drill.
4. Click on the external drive that you are trying to recover files from. If it has partitions, you will see all of them. If, however, you still don't see any volume to the external drive then you may need to try some of the steps above again or read the Disk Drill Scanning FAQs.
5. To avoid the external drive being accessed during the recovery process, click Extras next to the drive or drive partition or file, then select Remount Volume As Read Only. A padlock will appear, protecting the drive during the process.
6. Now click Rebuild (or Recover) next to the file(s) you are trying to recover. Once the scan is finished - it may take some time if the files are large - a list of files will appeal.
7. Next, click Mount Found Items as Disk button on the bottom-left below the scan results.
8. Disk Drill 'strongly suggest saving the files to a different drive than the one you are trying to recover files from. Saving to the same drive substantially lowers your chances of recovery.'
9. A drive icon will appear, which once you double click will give you the option to open the files as you would do before they were lost. Drag them to another location, such as your desktop or a folder on your Mac.
10. Open the files to ensure they have been recovered properly and safely eject the external drive.

Disk Drill does have other ways to recover lost files but assuming there aren't complications, this method is the most effective. Disk Drill Pro recovery app is available from Setapp, along with dozens of Mac apps that will make your life easier. Never have to worry about a crashed or corrupted external drive again.

A few more tips on getting your files back

1. Macs and third-party apps that look after Macs, such as Disk Drill and iStat Menus come with a S.M.A.R.T. (also known as Self-Monitoring, Analysis and Reporting Technology) status monitor. If a SMART check reports errors, then it could mean the hard drive is at risk of failing completely. Within Disk Utility and Disk Drill, there are several solutions for this: Repair Disk Permissions and Repair Disk. If neither work, it's recommended that you backup all of the data from the disk, erase, then run a SMART check again. The external hard drive should show up as Verified.
2. Partitions can get lost within hard drives, temporarily hiding all of the information contained within. Disk Drill can help to identify and restore this information.
3. Within Disk Drill, you can restore data when a hard drive is damaged or add formatting, which is also something Disk Utility can help with.
4. CleanMyMac, another useful app available from Setapp, can help you identify external hard drive errors and repair them. It is an essential tool worth trying when you're having external hard drive difficulties.

Try all these apps for free

Get a huge set of top apps for keeping your Mac in shape. Best utilities in one pack, give it a go!

Alternative ways to recover data from an external hard drive

Reset the System Management Controller (SMC) if your Mac shuts down when you plug in an external hard drive. Then use a different port to connect the external hard drive. If you've got a battery that you can't remove:

• Shut down and unplug the power adapter
• Press Shift-Control-Option and the power button at the same time. Do this for 10 seconds
• Release all keys
• Plug the power adapter back in and switch your Mac back on

For Macs with removable batteries, you need to switch them off, remove the battery, then press and hold the power button for 5 seconds. After that, put the battery back in, plug in the power adapter and switch the power on again.

What's your file format? One reason your Mac isn't recognizing the hard drive is the file format. Windows uses NTFS file formats, while Macs, up until the introduction of Sierra, have used HFS+. Now, Apple has introduced the Apple File System (APFS) for newer operating systems. It is possible to format a hard drive so it can be read on Mac and Windows computers, providing you format using exFAT. However, if you're having problems accessing the files and the issue is due to formatting, you will need to connect it to a device it can be read on, and then format the files correctly for the computer you are going to use it on next.

How to make Ext2/Ext3 drives readable on Mac

The common issue is Ext2- and Ext3-formatted drives are not readable on macOS. There are two ways to access such external drives on your Mac – via Linux OS or FUSE system. The easiest would be installing Linux to a secondary drive or virtual machine.

If you go with Linux installation, dual boot your Mac with Linux on another drive and use FAT32 as a transfer intermediary. If you don't have a drive to install Linux to, use virtual machine as an interface for it. Transferring can be done the same way – with FAT32, or via network.

Another option for reading Ext2/Ext3 disks is mounting disk with Filesystem in Userspace (FUSE). Basically, it works as an extra interface enabling file system access via specially installed modules. Here's how to mount drives with FUSE:

1. Install FUSE for macOS or MacFUSE as well as fuse-ext2 module.
2. Use the following Terminal command to enable Disk Utility's debug menu and see all partitions: defaults write com.apple.DiskUtility DUDebugMenuEnabled 1
3. Attach your Ext2/Ext3 drive and locate the device name via Disk Utility.
4. In your user account, create a folder to be used as a mount point.
5. Use the following Terminal command to mount the drive as read-only: fuse-ext2 /dev/disk2s2 /Volumes/mountpoint
6. For write support, use the command: fuse-ext2 -o force /dev/disk2s2 /Volumes/mountpoint

And that's not the only case where Terminal helps you access external drive.

Employ the handy all-powerful Terminal, which always comes forward with solutions for difficult problems. Especially if System Information does recognize the USB or hard drive, but continues to hide it from you, disconnect the drive and try to find it using the Terminal, which you can find in Applications > Utilities.

• Once in the Terminal, type in the command diskutil list
• A list with information about volumes and drives should appear
• Look for a section labelled /dev/disk_ (external, physical)
• Make a note of the whole line after the word disk
• Now put the following command into the Terminal diskutil info disk followed by the number or digits assigned to that disk
• Now you should see detailed information about the drive, therefore confirming that your Mac can and does recognize it
• Eject using the Terminal by entering the command diskutil eject disk followed by the number or digits assigned to that disk
• Physically remove the disk from you Mac
• Plug it back in and your Mac should recognize it

Console is also reliable when it comes to solving tricky problems, although it isn't always that easy to use. You can find Console under Applications > Utilities > Console. Console shows if an external drive or any error is detected under the Errors and Faults tab. If no errors show up, then the problem is not caused by the device.

To sum up, there are lots of potential solutions for a Mac not reading an external hard drive. If we were to pick one, Disk Drill seems to be the most well-rounded, offering plenty of customizations and power in an easy-to-use interface. Disk Drill Pro recovery app is available via Setapp, along with 150+ Mac apps that strive to make your life much much easier. At the very least, you'll never have to worry about a crashed or corrupted external drive ever again.

Meantime, prepare for all the awesome things you can do with Setapp.

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Windows 10 Does Not See External Drive