How to Find External Hard Drive on Mac In Case It's Working but Not Showing Up

1. Download and install EaseUS Data Recovery Wizard for Mac

2. Select and scan the drive/volume where you lost files

3. Preview the files and click the Recover button...Click full guide

Table of Contents

You use a Mac, then 80% of the chances you'll use an external hard drive for purposes of file transfer or data backup. The external drive here can be a USB flash drive, SD card, removable disk, HDD, or SSD. Coming back to this topic, quite a few Mac users are wondering how to find an external hard drive on Mac after connection since they're new to macOS. In addition, some old Mac users are faced with the issue that their external hard drive not showing up on Mac desktop or Finder. Now, where to find the external hard drive that is not detected by Mac? Do not worry. This post will help remove all the doubts one by one.

Workable Solutions Step-by-step Troubleshooting
1. Find and Locate a Drive

1. On macOS/Mac OS X desktop...Full steps

2. In the finder application...Full steps

2. External Hard Drive Not Showing up

1. Repair hard drive error with Disk Utility...Full steps

2. Format hard drive with a recognizable ...Full steps

Case 1. For New Mac Users - How to Find and Locate a Drive?

Since Apple's products are usually with exclusive design in the user interface, operating system, and display arrangement, new Mac users are easy to get lost in doing daily work. One of the troubles they reported is about having no idea to find the external storage device they connected to the Mac. As we know, the path to check a Windows external hard drive lies in the File Explorer under This PC. 

macOS displays an external drive in totally different ways. No matter you're a new user of an Apple Macbook or iMac, or it's just you want to have a general understanding of how macOS recognizes a connected drive and makes it visible, the below-mentioned locations are all places you can find on a Mac to check an external disk and volumes.

Tip: How to Connect an External Hard Drive on Mac
Most hard drives connect via USB. You should use the USB cable to connect the external hard drive and your Macbook Pro or any Mac computer and plug it into an open port along each side of the Mac. Note that some Mac-specific drives may come with a Thunderbolt or FireWire cable instead, so you need to pay attention to the correct port, and get an adapter if necessary.

Option 1. On macOS/Mac OS X desktop

Once you connect a drive to your Mac, it should appear on your Mac's desktop, with an icon of a USB or Thunderbolt like this.

hard drive icon on mac desktop

Option 2. In the Finder application

The Finder is with a smiley face icon, which is the gateway to all of your files, apps, downloads, and drives on your Mac. So, the other way to find the connected devices is within Finder, under Devices.

find external hard drive in finder on mac

Case 2. For External Hard Drive Not Showing up on Mac

As it is, if the drive is properly formatted and connected to the Mac, it should appear on the regular desktop screen and the Finder app. However, still many people don't see the drive icon in either location at all. This kind of issue may suggest that something wrong occurs, and it needs some fix to be recognizable by Mac.

It's a serious problem if you don't see a connected device showing up on Mac because you wouldn't be able to use the drive to transfer files, save data or make backups. Unless your hard drive has been largely corrupted by dropping onto the ground, water/fire damage, or too old or get too many bad sectors to prolong the lifespan, it's repairable. Now follow the basics to the advanced troubleshooting guide in the following, your problem can be hopefully get solved.

When your hard drive doesn't appear on Mac as normal, try the basic check and fixes in the first place.

  • Try the other USB port on your Mac to exclude the factor of the USB port not working issue.
  • Try to connect the external HDD, USB drive or SD card to another Mac computer to see if it's showing up.
  • Remove other peripherals connected to your Mac and keep only the external hard drive remaining connected.
  • Reboot your Mac and reconnect the external hard drive several times. 
  • Enable settings in Finder to show external devices on the desktop: Open Finder > select Preferences > click the General tab. Tick the box and enable the option to show external disks.

show external hard drive in finder settings

Most of the time, 70% of users can solve the invisible hard drive issue on Mac by applying the basics. Some users are not that fortunate enough as the behind issues are more complex. Don't panic, we have more advanced solutions for you.

EaseUS Data Recovery Wizard for Mac

  • Extract data from an inaccessible hard drive on Mac
  • Recover lost or deleted files, documents, photos, audio, music, emails effectively
  • Scan, preview and open files on an external hard drive when it's not showing up on Mac

Fix 1. Repair Hard Drive Error with Disk Utility

Whatever the causes prevent the connected hard drive from showing up on Mac, the inbuilt repair tool "Disk Utility" is helpful. The general troubleshooting steps are as follows.

Step 1. Click on the Finder icon from the dock, and then click Applications and you will find the Utilities option. Click in and open Disk Utility.

Step 2. There are two situations when you opened the Disk Utility.

  1. 1. The Mount option is valid, not grayed out. If this is the case, expand the View option and choose Show All Devices. Find the external hard drive that is not visible right now, and click the Mount button at the top area. After successfully mounting the hard drive, you would be able to see the drive in Finder and access files in it.
  2. 2. If the external hard drive has been mounted, there is only an unmount option available. In this case, you need to use the First Aid option instead to fix the disappearing hard drive on Mac. All you need is to choose the grayed-out external hard drive from the left sidebar, click the First Aid option and then choose Run. After a while, you'll get the results saying the drive has been repaired or it's failed to get repaired.

repair external hard drive not showing up with first aid

Fix 2. Format Hard drive with a Recognizable File System

To effectively use an external storage drive on a Mac computer, it must be formatted with a macOS-compatible file format. In a previous post we discussed the best format for an external hard drive for Mac, we've learned that NTFS is a Windows-compatible file system but very common to use on an external HDD and SSD. If you use an NTFS hard drive on a Mac, it'll become a read-only hard drive which you cannot make changes to files in it.

As such, when you plug in an external drive correctly but it's not appearing as you expect, it's might be a file system problem. In this regard, make sure that the external hard drive's file system is formatted with APFS, HFS+, FAT or ExFAT. These four are the recognizable file system for macOS.

Since the hard drive with the wrong file system is not visible on Mac, you need to format the drive to ExFAT, which is both Windows and macOS compatible file system by using a PC or some third-party disk formatting tool.

If you prefer a macOS-only file system for the external hard drive, you can then format the ExFAT hard drive on Mac using the Disk Utility's Erase option.

disk formatting options in disk utility mac

Extra Tip: How to Recover Data from Not Showing External Hard Drive on Mac

Disk formatting erases data in order to take effect. There are several situations you might need a Mac data recovery solution when getting stuck on the external hard drive issue on Mac.

  • Format an external HDD, USB flash drive or SD card without backup.
  • External hard drive is not showing up on Mac desktop but you have important data in it.
  • External hard drive is not showing files or folders even it's correctly detected.

Download EaseUS Data Recovery Wizard for Mac so you can possibly get back the desired data in a problematic hard drive whenever you need it.

Step 1. Correctly connect your external hard drive to your Mac. Launch EaseUS Data Recovery Wizard for Mac, select the external disk and click "Scan" to let the software search lost files on it.

select the flash drive where data lost and click scan

Step 2. After a quick scan and deep scan, all files will be presented in the left panel in the scan results.

scan lost data on the flash drive

Step 3. Select files you want to recover and click the "Recover" button. Don't save the recoverable files to the external hard drive in case of data overwriting.

click recover now button to recover lost flash drive data on your Mac

Was This Page Helpful?

Updated by Gemma

Gemma is member of EaseUS team and has been committed to creating valuable content in fields about file recovery, partition management, and data backup etc for many years. She loves to help users solve various types of computer related issues.

Read full bio

Written by Jean

Author Jean has been writing tech articles since she was graduated from university. She has been part of the EaseUS team for over 5 years. Her special focuses are data recovery, disk partitioning, data space optimization, data backup and Mac OS. By the way, she's an aviation fan!

Read full bio

Product Reviews

TrustScore 4.7 | 59 reviews
  • EaseUS Data Recovery Wizard is a powerful system recovery software, designed to enable you to recover files you’ve deleted accidentally, potentially lost to malware or an entire hard drive partition.

    Read More
  • EaseUS Data Recovery Wizard is the best we have seen. It's far from perfect, partly because today's advanced disk technology makes data-recovery more difficult than it was with the simpler technology of the past.

    Read More
  • EaseUS Data Recovery Wizard Pro has a reputation as one of the best data recovery software programs on the market. It comes with a selection of advanced features, including partition recovery, formatted drive restoration, and corrupted file repair.

    Read More