Hard disk drives' spinning disks can come in either 2.5-inch or 3.5-inch sizes. A standard size for a portable hard disk drive, for example, is the Western Digital Elements 2TB hard drive, which comes in at 4.35 x 3.23 x 0.59 inches. Smaller desktop hard drives come in at around 7 x 5 inches and range up from there. If the drive name is grayed, then right-click on the drive name and choose Uninstall. Restart the computer and reconnect the drive, and check if the drive gets detected. To resolve Wd External Hard Drive Not Recognized issue,contact our technical team by clicking the call button displayed on this screen.
Dec 21, 2020 • Filed to: Answer Hard Drive Problems • Proven solutions
Upon reboot my whole drive was bricked! Thank god for my past work in the security field, including data forensics. I've totally bricked around 50 hard-drives in my day, all of which I still keep just in case (bricked means they won't even power up to spin). The external hard drive capacity should be between 250gb minimum to 8tb maximum. The external hard drive must connect directly to the USB port of PS4. Using a USB hub for this purpose is not allowed. Make sure to download the latest PS4 System Software update and install it before starting the format process.
When you plug in your external hard disk to your computer, you may find that your hard drive is detected by the operating system, but you're not able to open.
Such a problem can occur due to multiple factors, and if you're worried that you won't be able to reaccess the drive and thinking 'how to fix the external hard drive, not opening?'
There is no need to start panicking! You can follow our complete guide to learn the reason behind your hard disk inaccessibility, and we will also guide you through the process of how to repair that external hard drive and recover the erased data along the way too.
Part 1. Why External Hard Drive Recognized But Not Accessible?
There could be several reasons why your external hard drive may fail to respond to your Windows PC. It can be caused by some technical glitch in your operating system, or it might be due to the drive's internal hardware failure. It can also occur when you fail to plug in the device through the USB port properly.
Most of the time, such an issue gets resolved when you re-plug the drive into the PC or restart the system again entirely. But if such a problem with your hard drive persists and it remains visible on the system but doesn't open, even if you connect it to another computer system. Then there might be a deeper problem at play with the hard drive. Here is the list of issues that could be behind the problem with your external Hard Drive.
- Presence of bad sectors caused by inappropriately removing the drive from PC without following the removal protocol.
- Mechanical failure is caused by dropping the drive on the ground.
- Virus or Malware is caused by opening an ill-conceived website or file.
- Driver issue caused by some software glitch.
Whatever may be the reason behind this problem, in this article, we will help you repair your hard drive, which will allow you to access the important files within.
Part 2. How to Fix External Hard Disk Detected But Not Opening?
Before initiating the process to fix the issues with your hard drive, some external drives have power cables or a physical power switch, which should be ON at all times for you to perform operations on the disk. It is a simple step, but you should check it before anything.
Www premieres nz. After checking the ON/OFF switch, you can proceed further to perform other solutions to fix the inaccessibility problem.
Solution 1. Check the External Hardware:
Before performing any step, it is advised that you check the health of the external hardware of your system and the drive's accessories, which are as follows:
1. USB port.
2. Power/Data cable.
Please follow these steps to check whether the problem is with your drive or with your computer.
- It is advised that you plug in the external hard drive on some other System to check whether there is some kind of issue with your PC.
- Please try to Re-Plug the device on some different USB port, as the frequent usage of one port might have caused some wear and tear which could have loosened the hinges.
- Try the Data Cable of your external drive on some other device to see that it is functioning correctly. The casual and repeated use of the power cable may cause it to lose its functionality.
Solution 2. Restart your PC:
Restarting is perhaps the most natural solution to our hard drive being unresponsive. This fix usually solves the error half of the time. There are many ways to restart your computer, but we will try it the conventional way, so please follow our guide to perform this solution.
- Open Start menu.
- Click on Restart.
- After restarting the system, try plugging the device into the PC to review the issue at hand. If the problem persists, then hop onto the next solution.
Solution 3. Update Driver of the Disk:
If you continue to remove your device casually from the computer, it may cause some sort of damage to the driver of your hard drive. This hassle can be fixed by reinstalling or updating the external hard drives, which can fix any problem with your storage device.
The Hard Drive's Driver:
The driver of the external disk is very similar to, the internal HDD on a computer, which consists of a rotating platter with a magnetic surface that rapidly stores digitally encoded data. It also provides the means of communication between the drive and the computer to which it is connected. It functions by giving the hard drive's serial/model number as well as physical information (sectors, heads, and the storage capacity) to the operating system so that it can recognize it.
Follow our step-by-step solution guide to check your drivers.
- Open Device Manager on your computer by entering the name in the search bar.
- Right-click on your Hard Drive's driver.
- Click on Properties.
- Click on the Driver tab and click on Update Driver.
- Click on 'Search automatically for updated driver software', or you can click on 'Browse my computer for driver software' if you have the driver file on your PC.
- The system will start searching for your diver software, you can also uninstall the device and reinstall it, using the same utility.
- Your PC will automatically update the software if there is a new update. Otherwise, it will notify you that 'The best drivers for your device is already installed'.
- If the issue persists after that, click on Close and jump to the next solution.
Solution 4. Fix it by Disk Management and Format it:
You will be able to access the properties and storage of your external storage drive with the help of the Disk Management utility. It can create a new partition within the device, if there is unallocated space and assign it a new letter to enable access. Follow our solution below:
- Open Disk Management through the Start menu.
- Right-click on your external drive's icon.
- If you find unallocated space, then click on New Simple Volume and click on Next.
- Assign a letter to the drive and click on Next.
- Select the Do not Format option and push Next.
- Click on Finish.
- You can also format the device by right-clicking on the icon of the drive and selecting Format.
Solution 5. Run Windows Troubleshooter:
You can fix specific problems through the Windows troubleshoot utility, which automates the diagnosis and repairs the problem with your computer system. Follow our guide to use the windows troubleshoot utility, which may fix the hard drive inaccessibility issue.
- Open the Start menu and click on Settings.
- Click on Troubleshoot and find Hardware and Devices.
- Click on Run the Troubleshooter.
- The troubleshooter will start scanning for irregularities in the PC.
- It will notify you after finishing the scan and will advise you to apply the fix if any problem is detected. Choosing the option will prompt you to restart the computer.
Solution 6. Run CHKDSK to Repair Disk:
You can use the CHKDSK facility by using the command prompt on your PC. Before using the check disk command, it is important to know what type of functions it performs to fix specific disk-related problems.
1. It scans the integrity of the file system and file system metadata on a disk volume.
2. It fixes all types of logical file system errors that it finds during the scan.
3. Through its disk scan, CHKDSK detects the good and the bad sectors of the selected disk.
Follow our procedure to run the check disk command on your external hard drive to detect problems.
- Open Command Prompt on your PC through the Start menu.
- Run the program as an administrator.
- Your Command prompt window will open, type the following command inside the display, and hit Enter.
chkdsk X: /r /f where X is the external hard drive letter and /r & /f are the parameters of CHKDSK.
- The command will run its scan. Once the scan is complete, remove the drive and re-attach it again with the PC to see whether the procedure worked or not.
Part 3. How to Recover Data from Hard Drive Not Detected?
If you select the solution of formatting the external drive, then it will erase all the data. If the files inside your hard drive are irreplaceable and you intend to use those again, then you can recover all of your data. The data can be recovered until you overwrite the drive's memory with new data. To retrieve the files, you are required to perform a recovery operation by using a data recovery tool for Windows, and there is none better than Recoverit Data Recovery Tool by Wondershare.
Features of Recoverit:
- Works on every type of portable device (USB, HDD).
- It recovers data in more than 1000 file formats known in the tech world.
- Recoverit supports all types of File system formats like exFAT, FAT32, HFS, NTFS.
- It keeps your data secure and retrieves it with 96% efficiency.
- It is available on both macOS and Windows PC.
To recover all of your files, you are required to follow our three-step process to recover deleted files after installing the app.
1. Select the Location:
Please follow the steps mentioned below to begin.
- Launch it from the Start menu.
- Select the 'Location' of your external hard drive.
- Click on the 'Start' button for the process to begin.
2. Scan for Lost Data:
- The scanning process will start. It will take some time for the scan to finish, depending on the storage space of your external hard disk.
- A scan completion pop up will appear on the screen with a beep tone.
- There is also a Pause and Stop button, which enables you to stop the scanning process.
- The results will be displayed, which you will be able to view them from the File Type and File Path section.
- You can pause or stop the disk recovery scan by clicking the Pause/or Stop button.
3. Recover the Lost Data:
- Recoverit allows users to Preview the recovered files, which will enable you to check the authenticity of the erased data.
- You can select your files and retrieve them by clicking on the 'Recover' button to reclaim your data back.
Closing Words:
It is entirely up to your personal maintenance, and handling of your computer's hardware and how you keep your PC protected by using some good antivirus. You are advised to check the way you plug in the drive inside the USB port. You are also required to press the eject button before removing the disk from the computer. It is also important that you check the health of your external storage device regularly by scanning it through the CHKDSK utility.
Now you know six possible solutions to fix the hard drive if any such issue ever arises. However, if you still aren't able to access your files or have formatted the drive entirely, then you can recover those files by using the Recoverit Data Recovery program to gain access and recover all the important data.
What's Wrong with Drive
- Recover Your Drive
- Fix Your Drive
- Format/Wipe Drive
- Know Your Drive
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.
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:
- 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 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.
- 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 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.
- 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.
Computer Not Recognizing Hard Drive
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
- Go to the Finder menu and select Preferences (Cmd+comma).
- 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:
- Open Disk Utility. You can searching for it using Spotlight Search or via Finder > Application > Utility
- 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.
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:
- 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 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.'
- 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 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.
Why Is My External Drive Not Showing
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 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.
- 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.
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!
- The scanning process will start. It will take some time for the scan to finish, depending on the storage space of your external hard disk.
- A scan completion pop up will appear on the screen with a beep tone.
- There is also a Pause and Stop button, which enables you to stop the scanning process.
- The results will be displayed, which you will be able to view them from the File Type and File Path section.
- You can pause or stop the disk recovery scan by clicking the Pause/or Stop button.
3. Recover the Lost Data:
- Recoverit allows users to Preview the recovered files, which will enable you to check the authenticity of the erased data.
- You can select your files and retrieve them by clicking on the 'Recover' button to reclaim your data back.
Closing Words:
It is entirely up to your personal maintenance, and handling of your computer's hardware and how you keep your PC protected by using some good antivirus. You are advised to check the way you plug in the drive inside the USB port. You are also required to press the eject button before removing the disk from the computer. It is also important that you check the health of your external storage device regularly by scanning it through the CHKDSK utility.
Now you know six possible solutions to fix the hard drive if any such issue ever arises. However, if you still aren't able to access your files or have formatted the drive entirely, then you can recover those files by using the Recoverit Data Recovery program to gain access and recover all the important data.
What's Wrong with Drive
- Recover Your Drive
- Fix Your Drive
- Format/Wipe Drive
- Know Your Drive
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.
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:
- 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 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.
- 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 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.
- 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.
Computer Not Recognizing Hard Drive
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
- Go to the Finder menu and select Preferences (Cmd+comma).
- 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:
- Open Disk Utility. You can searching for it using Spotlight Search or via Finder > Application > Utility
- 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.
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:
- 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 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.'
- 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 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.
Why Is My External Drive Not Showing
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 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.
- 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.
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:
- Install FUSE for macOS or MacFUSE as well as 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 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.
Contact xbox by phone. Meantime, prepare for all the awesome things you can do with Setapp.
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