Try them one by one, then your external hard drive should appear again.The drive simply does not appear in Finder. In this post, you can find the most effective methods. Figuring out all methods could take you hours even days. The last chance for you to rescue data is to send the broken USB drive to a specialized data recovery service center nearby, and let the professionals try their best.There are many reasons causing external hard drive not showing up on Mac. Mac won't recognize a badly damaged flash drive or external hard drive since there is no way to show it up, even temporarily, which makes the data recovery difficult.You may not have to try them all just work your way down the list until you find the one that works for you.Install older OS X onto an external drive. There are some useful fixes to the external hard drive not detected on Windows 10.There are 8 methods for you to try. The external hard drive not showing up problem occurs frequently on Windows PC or Mac, and it could lead to data loss. If you run first aid, Disk Utility will display a.Sometimes, when you connect an external hard drive to your computer, you may find it fails to show up.
![]() You can check if the drive is really connected to your Mac using this command.3) Find dev/disk (external, physical). After that, you’ll see a list of mounted drives and their information.Command “diskutil list” is a command you can use to check the basic information about all hard drives. Just move on to other methods.)To fix external hard drive not showing up on Mac issue, you can try disconnecting the drive and then remounting the drive via Terminal.2b) Click Applications, then double-click Utilities.2) Type diskutil list then press the Return key (or the enter key) on your keyboard. (If the box is already selected, this method doesn’t apply to you. Ensure the check box “ External disks” is selected. If that’s the case, you need to manually configure the settings to make the hard drive to show up on the desktop or in Finder.Below are the steps for you to ensure the external drive show up on desktop.2) Select the General tab. Replace the with the number representing your external hard drive. Remember this number which you’ll need in next step.4) Type diskutil info disk, then press the Return key (or the enter key) on your keyboard. In my case, the number is 1(see screenshot shown below). Note you can’t see the dev/disk (external, physical) this time.7) Physically remove the external hard drive then connect it to your Mac again.8) Check to see if the hard drive appears.If you connect a disk drive with NTFS format to your Mac, the drive won’t be recognized, as NTFS format is not officially supported by OS X. After that , the drive will be ejected.6) Type diskutil list and press the Return key (or the enter key) on your keyboard. If you can’t see the detailed information about the external hard drive, move on to Method 5.5) Type diskutil eject disk, then press the Return key on your keyboard. Then move on to next step. Emulator psp 661 macIf it shows other formats like ExFAT, you don’t need to change the format, then try the next method.Warning: The data in the drive will be lost after you proceeding the following steps. If it shows NTFS, to make the external hard drive show up on your Mac, you need to change the drive format. Then Disk Utility will open.3) Select the drive in the sidebar, then select the Info tab.4) Check if the File system is Windows (NTFS). Then Spotlight Search will open.2) Type Disk Utility and press the Return key (or the enter key) on your keyboard. So you can check if the drive is NTFS-formatted:1) Click the search icon in the upper right corner of the desktop screen. If you hard drive has stored very important data, you may need to recover and back up the data first. Then click the First Aid tab.5) Check to see if your external hard drive appears.After trying above steps, if the problem still persists, it’s recommended you to have a technician guy to make a further check. To fix the problem, you can run First Aid to repair the errors.2) In the left pane, select the external drive. Please be patient until the process completes.4) Check to see if the external drive appears.The problem can be caused by corrupted files. The process may take a few seconds. You can connect the drive to a PC running Windows, then save the data to that PC.2) Select the drive in the sidebar, then select the Erase tab.3) Select Format to ExFAT, then click Erase. External Hard Drive Not Showing Up On Sierra Install On YourIf you’re prompted to enter the password to allow it to install on your Mac, enter the password.2) Launch Stellar Phoenix Mac Data Recovery and click Next. To recover the corrupted files, you just need a few mouse clicks:1) Download and install Stellar Phoenix Mac Data Recovery for Mac. If you’re not sure what program you can trust, you can do it with Stellar Phoenix Mac Data Recovery Pro. ![]()
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