How to Fix Toshiba External Hard Drive not Showing up on Mac?

Posted by Molly to Mac Data Recovery on August 14th, 2018

I have a Toshiba Canvio 1TB USB 3.0 hard drive. But when I plugged it into my Macbook Pro (mid 2012) it didn't show up. I have tried to swap around the USB connection cords but still not showing up. Read something about the Toshiba sometimes not being able to show up on Mac laptops due to lack of power, I tried using an external powered USB hub still nothing. Can any one tell me why the Toshiba external hard drive not showing up on my Mac, and how to fix it?

In this article, we will provide you useful troubleshooting ideas to Toshiba external hard drives not showing up on Mac issue. More importantly, we will show you how to recover data from not showing up Toshiba external hard drive as well as recover data from the not showing up external hard drives.

Why is the Toshiba external hard drive not showing up on Mac?

"Toshiba external hard drive not showing up on Mac" is a frequently asked question in Apple support community. Just like other external hard drive problems on Mac, such as WD external hard drive not mounting on High Sierra, Seagate hard drive not showing up on Mac, etc., various reasons could lead to Toshiba external hard drive not showing up correctly on Mac, including file catalog corruption, system error, virus, physical damages, etc.

Whatever the reason is, if it occurs to your Toshiba drive, you'll have no access to the files stored on it.

Troubleshooting to Toshiba external hard drive not showing up on Mac error

If your Toshiba external hard drive doesn't show up when connected to a Mac via USB port, follow the troubleshooting ideas below. It's also helpful for Toshiba external hard drives not mounting on Mac, USB flash drives not showing up on Mac, SD cards not showing up on Mac and other external hard drives not showing up/not mounting/not working on Mac computer issues

1. Toshiba external hard drive is not correctly powered.
Fix: Try to connect it to an external powered USB hub.

2. The USB cable is damaged.
Fix: Try a different USB cable.

3. The USB port is damaged.
Fix: Try a different port or a different computer.

How to fix Toshiba external hard drive not showing up on Mac error?

Solution 1: Make sure your Mac is set to show External disks like Toshiba external hard drives on the desktop.

Go to Finder > Preferences > General and make sure the "External disks" option is checked. You'll see the Toshiba external hard drive showing up on Mac desktop.

Show Toshiba external hard drive on the Desktop

Solution 2: Make sure your Mac is set to show up Toshiba external hard drive in the Finder.

Go to Finder > Preferences, select Sidebar, and under Locations make sure "External disks" option is selected again.

Show Toshiba external hard drive in the Finder

Solution 3: Mount or fix the not showing up Toshiba external hard drive in Disk Utility.

Disk Utility is designed to verify and fix minor problems of disks. If the Toshiba external hard drive shows up in Disk Utility, it means it is recognized by the Mac. Thus, you can follow the tutorial as below.

Method 1: Mount Toshiba external hard drive in Disk Utility manually by clicking on the Mount icon.

Method 2: If the Toshiba external hard drive is unmountable in Disk Utility, try to fix it with First Aid.

If Disk Utility's First Aid failed on external hard drive, you can reformat the not showing up Toshiba drive to re-use it.

Solution 4: Reformat the not showing up Toshiba external hard drive.

Please note that reformatting the Toshiba external hard drive will erase all the files stored on it. In order to avoid unwanted data loss, it's necessary to recover data from the not showing up Toshiba drive in advance.

iBoysoft Mac Data Recovery is trustworthy and professional data recovery software that is able to recover deleted/lost photos, videos, documents, music files from unreadable USB flash drives, unmountable SD cards, memory cards, external hard drives, and corrupted, damaged, formatted, inaccessible drives on macOS Mojave/High Sierra/Sierra and Mac OS X 10.11/10.10/10.9/10.8/10.7. It supports HFS+, HFS, FAT32, exFAT and APFS external drive data recovery.

Through only 4 steps, you can fix Toshiba external hard drive not showing up on Mac error without losing data.

Step 1: Recover data from the not showing up Toshiba external hard drive with iBoysoft Mac Data Recovery.

1. Download and install iBoysoft Mac Data Recovery.

2. Launch iBoysoft Mac Data Recovery.

Recover data from not showing up Toshiba external hard drive

3. Select the not showing up Toshiba drive and click "Next" button to scan all lost data.

4. Preview the searching results, choose files you need, and click "Recover" to get them back.

Step 2: Select Toshiba external hard drive in Disk Utility sidebar.

Step 3: Click Erase on the top.

Step 4: Follow the instructions to finish the reformatting process.

After the process finished, you will hopefully see the Toshiba external hard drive showing up on Mac correctly. If not, go to the last option.

Solution 5: Fix Toshiba external hard drive not showing up error in professional disk reparation center.

If you have tried out all the solutions above with no luck, the Toshiba drive still not showing up on Mac, it could be damaged physically. You have to send it to specialists for suggestions.

Besides fixing Toshiba external hard drive not showing up on Mac error, you can also try out this tutorial to fix the problems of My Passport for Mac not showing up, Seagate Backup Plus drive for Mac not showing up and much more.

Still have questions?