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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 Locations.
- Most of us use external hard drives to back up important files from time to time. How to fix an external hard drive not showing up on Mac?
- Mac Computer With Cd Drive; Cd Drive Not Working Windows 10; Apple Mac Cd Drive Not Working 2019; The Apple SuperDrive is an external CD / DVD drive that reads and writes to optical discs, and while it works great with many Macs, there are some Mac models where the SuperDrive doesn’t work, like any Mac that happened to come with a built-in optical drive.
- When you plug an external SSD or USB flash drive into your Mac’s USB port, your system should detect it immediately and display it on the desktop for easy access. If this doesn’t happen, check the.
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 at why this is happening and how you can fix the external hard drive not showing up problem:
Why your Mac does not recognize external hard drive
Let’s say you’ve encountered the problem of SSD not showing up. There could be a few reasons why SSD isn’t making an appearance (just as any other external drive), the most common being:
- There’s something wrong with the cable
- There’s a power supply problem
- Your drive has been corrupted or broken
- The drive is not readable on macOS
- NTFS read-only problem.
How to fix an external disk drive that won't show up on a Mac
While it’s impossible to instantly figure out why an external disk drive is not showing up, you have to try to fix the problem.
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Get a huge set of top utilities for troubleshooting external hard drives not mounting on a Mac
Start with the basics:
- 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.
- 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.
- 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.
- Reboot your Mac. Sometimes, if a USB disk won't boot, the cause is a macOS issue. Hopefully, some data damage can be fixed by restarting. Choose the Apple menu > Restart. Or press and hold the power button and, when a dialog box appears, click Restart or press R. Restarting your Mac essentially clears your macOS’s memory and starts it up fresh.
- 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. - 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 Locations. 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.
- 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.
- 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 you continue having the external hard drive not showing up problem, 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 fix new hard drive not showing up in Finder
When you connect a drive to Mac, it should appear in Finder under Locations. What to do if external hard drive is not detected? In most cases, when Finder doesn’t see your drive, you just have to change a few things in Preferences. However, sometimes, there are more serious problems such as insufficient power supply. Let’s see how you can fix these things.
How to show connected devices in Finder
- Go to the Finder menu > Preferences
- In General, click on 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 a 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 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
The most direct reason your external hard drive could be detected by macOS but can't be opened is the file system problem. If your drive is having such 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 any external drive) using Disk Utility you will hopefully be able to recover your files.
To run Fist Aid on an external hard drive:
- Open Disk Utility. You can search for it using Spotlight or via Finder > Go > Utilities
- Check on your external hard drive, click the First Aid tab and select Run to start running diagnostics.
How to recover data from a crashed drive
If First Aid has been successful in fixing errors, the external drive should be available to mount. If the utility hasn’t repaired issues, your drive truly is broken or formatted using a file system that the Mac cannot read — in this way you have to recover data from a damaged disk drive.
Thankfully, there is an app for that. Disk Drill is the world’s premier data recovery software for Mac. Powerful enough to retrieve long-lost, mistakenly deleted files from Macs, external hard drives, USB drives, and camera cards.
Restore deleted files
Don’t be afraid to connect NTFS drives to Mac. Setapp gives you Disk Drill so you can restore any data if there’s a drive failure.
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An easy way to recover lost files on an external hard drive
Here’s how to recover files with Disk Drill (pro version available on Setapp):
- Connect your drive to the Mac.
- Quit all other applications on the Mac, especially those that may be trying to access the external drive (e.g. iPhoto, Words)
- Launch Disk Drill.
- 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.
- 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.
- 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.
- Next, click Mount Found Items as Disk button on the bottom-left below the scan results.
- Disk Drill 'strongly suggests 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.'
- 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.
- 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 are no complications, this method is the most effective.
A few more tips on getting your files back
- 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 of them works, it’s recommended to back up all of the data from the disk, erase it, then run a SMART check again. The external hard drive should show up as Verified.
- 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.
- 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.
- 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.
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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 and hold Shift-Control-Option and the power button 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.
How to fix external drive NTFS read-only problem
External hard disk detected but not opening? 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.
If you connect an NTFS drive, your Mac will be able to read it but not edit it. This means you can’t really complete your task (move, copy, or delete any files) as long as you experience the read-only problem. There’s an easy way to fix this with iBoysoft NTFS, an app that enables full read/write support for NTFS drives on Mac.
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 the drive to install Linux to, use a 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:
- Install FUSE for macOS or MacFUSE as well as a fuse-ext2 module.
- Use the following Terminal command to enable Disk Utility’s debug menu and see all partitions: defaults write com.apple.DiskUtility DUDebugMenuEnabled 1
- Attach your Ext2/Ext3 drive and locate the device name via Disk Utility.
- In your user account, create a folder to be used as a mount point.
- Use the following Terminal command to mount the drive as read-only: fuse-ext2 /dev/disk2s2 /Volumes/mountpoint
- 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 your 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 or via Spotlight. 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.
How to fix insufficient power supply
Another thing that might cause USB drive not showing up is that your USB cable is just not powerful enough. Typically, a USB 1.0 or 2.0 works, but there are drives that require more power. In this case, you should get another connector or use some type of USB hub to increase the power supply. If you still can’t access external hard drive, consider switching to another Mac.
Conclusion
Hopefully, we’ve covered the topic so you don’t have to google “external hard drive disappear from the computer” ever again. There are lots of potential solutions for a Mac not reading/writing an external hard drive. If you’re trying to connect an NTFS drive, do it with iBoysoft NTFS for Mac. If you need to add cloud storage, CloudMounter will help you. Most importantly, you’ll never have to worry about a crashed or corrupted external drive because Disk Drill will help you recover all the data stored on it.
iBoysoft NTFS, CloudMounter, Disk Drill, and other powerful apps such as CleanMyMac X are all available via Setapp, a productivity suite that solves your tasks with apps. Give it a try for seven days free and fix all your Mac issues in one go.
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Summary: This article talks about the various troubleshooting methods to fix External Hard drives not showing up on Mac issue. Try and follow the 7 proven ways given to resolve the issue effectively and make the external hard drive mountable on Mac.
External hard drives are not only renowned for their data storing capability but also for their portability function. Whenever you connect your external hard drive to the USB port of your Mac computer, it shows up not only on the desktop but also in the Finder menu on the left-hand side under Locations or Devices.
Due to various reasons which are mentioned below, you might find your external hard drive not showing up on Mac. If you have saved all your crucial backup on the external drive, MacBook not recognizing the external hard drive can lead to a data loss scenario.
In this article find out:
Why is my external hard drive not showing up on Mac?
- External hard drive corruption.
- Physical damage to the external hard drive.
- Faulty USB connector.
- Problem with Mac USB ports.
- Hidden external drive.
- Improper formatting on the external hard drive.
- Recent macOS Big Sur or Catalina update issue.
Before you move on to find proven ways to troubleshoot external drives not showing up on Mac, let us first know how to recover data from it.
Download Remo Recover Mac, a user-friendly tool to recover data from internal and external storage devices like external HDD, SSD, USB, SD card, etc. The tool supports recovery of more than 300 file types such as photos, videos, PDF files, audio files, raw images, Office files. Using this tool, you can easily restore data from MacBook Air, MacBook Pro, WD MY Passport, Seagate external hard drive, and many more.
How do I get my external hard drive to show up on my Mac?
Try these easy troubleshooting methods to make your hard drive show up on Mac.
1. Connect the External Hard drive Properly
The first and foremost thing to do if your external hard drive not showing up on Mac is to check if the external hard disk is properly connected or not.
Once, it is confirmed that the external hard drive is properly connected to your Mac device, then your Mac should easily recognize the external hard drive and the data saved on it.
If your Mac not recognizing an external hard drive due to any hardware issues, you can plugin the unrecognized external hard drive into a different USB port of your Mac.
It might look like child's play but inserting an external hard disk to another or healthy USB port can help you understand whether the issue is pertaining to the hard drive failure or USB cable.
2. Fix Issues with the USB cable
Your external hard drive not showing up on Mac can be due to the USB cable or HDMI cable connecting the external hard drive to your MacBook Pro or Air.
- Accessing data from an external hard drive on Mac is dependent on the USB cable. If the USB cable is not properly connected to your device then, Mac won’t recognize the external hard drive.
- If your USB cable is damaged, then fixing it becomes a priority to access your external hard disk on Mac. Hence, make use of a different USB cable to connect the external hard drive to a Mac computer.
Quick Note: If your MacBook is having USB-C or Thunderbolt 3 ports, then use USB-C to USB adapter to connect the external hard drive to your Mac.
3. Reset Mac Computer
Resetting a Mac machine can reboot a few system settings to its default and ensure any issue with respect to it is resolved. This can also help you fix the external hard drive not booting issue due to Mac operating system. To Restart your Mac;
Go to the Apple menu and click Restart. (or) Press and hold the power key until a dialog box displays and hit the Restart or press the R key.
4. Change Preference Settings
One of the reasons why the external hard drive does not show up on Mac is due to Preference settings. If you have not allowed your Mac to access the external hard disk in the preference setting, then Mac won’t show up external hard disk on the desktop. To allow your Mac to show up the external hard drive, edit the preference setting using the below steps;
- Open a Finder window.
- Go to Preference and select General.
- Under “Show these items on the desktop”, check the External disks option.
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In most cases, this method will resolve your issue of an external hard drive not showing up on the Mac desktop or Finder menu.
If your Mac not recognizing an external hard drive despite performing the above steps or if this preference setting is already set up, then move down to the below section.
5. Use different Mac or Windows PC
If you still find your Mac not recognizing hard drive then, try connecting the external hard disk to a different Mac system, sometimes there might be a problem with your Mac computer itself.
Connect your external hard drive to a different Mac to find out whether it is mounting on it or not. If the external HDD is mounting on the new or different Mac, then the problem is with your old Mac. In case, if the external hard drive not showing up on both Mac devices, then connect it to a Windows computer.
Quick Note: If your external hard drive is accessible on Windows 10 but not on Mac, then the external hard disk is formatted for Windows computers and not for Mac systems. Check out this article on how to make an external hard disk compatible with Mac.
6. Use Disk Utility
Once you find out that the Mac device is not responsible for the external hard drive not showing up issue. Follow the below steps to run the first aid utility to fix external hard drive corruption.
- Navigate to Go > Utilities > Applications > Disk Utility
- If your external hard drive appears in the Disk Utility, right-click on the drive and select Mount. This will make your external hard drive option available on the desktop and in the Finder menu. Thus, you can access all your files present on the external hard drive.
(Note: If the Mac has already mounted your external hard drive (volume) then, the option Unmount will be displayed.) - If the drive is not accessible then, the Mount option will be greyed out.
(Note: To repair your inaccessible or not showing external hard drive Run First Aid.) - Now, choose the First Aid option and click Run.
- After running the First Aid, if the Disk Utility detects any issues or errors on the external hard drive then, click Repair Disk.
Using this method, you can easily repair minor corruption and access an unrecognized external hard drive on Mac. In case, if the first aid utility fails to repair the external hard drive or SSD, this indicates the following 2 reasons;
A) Your external drive is severely corrupt or broken:
If First Aid Disk Utility fails to repair the drive, it could be due to the RAW or broken drive. The file system registry that holds the information of the data present on the drive gets broken or damaged then, Mac does not recognize the external hard drive.
B) The external hard drive file system is not compatible with Mac:
External hard drive or USB is formatted using a file system that your Mac cannot read. For example, if an external hard drive is formatted using the NTFS file system then, no Mac computer can read or write the external hard drive. In the same way, if the external hard drive or USB is formatted with the HFS+ file system then, no Windows operating system can support it.
ExFAT and FAT32 are the two most common file systems that can be easily supported by both Windows and Mac operating systems.
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Now, the last thing to do to fix the external hard drive not showing up on Mac is to format it using the compatible Mac file systems like exFAT, FAT32, HFS+, or APFS.
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7. Format unrecognized External hard drive
Formatting the external HDD on Mac leads to a data loss scenario. Before you format your external hard drive to exFAT, Mac OS Extended (Journaled), FAT, or APFS file system, it is suggested to recover data from it using Remo Recover Mac.
Remo Recover (Mac/ Windows) is designed with advanced scanning algorithms to effortlessly recover files from corrupt, unrecognized, formatted, or inaccessible external hard drive on Mac. This tool is compatible with all the versions of Windows and Mac operating systems including the latest Windows 10 or Mac Big Sur.
To format external hard drive not showing up on Mac:
- Navigate to Disk Utility
- Select the external hard drive not showing up on Mac and click the Erase option
- Now, give a new name to your external hard drive (optional)
- Click the Format button to choose the format type you want to perform on it. (Select exFAT if you want to make sure it's compatible with PC and Mac, otherwise, Mac OS Extended (Journaled) is probably the best option)
- Click on the Erase optionand wait until the Disk utility function removes all the files present on the external hard disk and then reformat it with the selected file system.
Conclusion
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In most cases, editing the Preference setting to show the external hard drive on the desktop fixes the issue. However, if the external hard drive is corrupt then, you should repair it using First Aid utility or format it with compatible Mac file systems like exFAT or APFS.