Fix OWC Thunderbay Drives Won't Mount on MacBook Pro M1

I have had an external OWC Thunderbay 4-bay system for years, and it really works great on all of my Intel Macs. But when I connected it to my new Mac, MacBook Pro M1, it refused to mount, and I have no idea why this happened.

Best Answered by

Finley· Answered on Apr 16, 2024

If you are an external hard drive owner and you found that your OWC Thunderbay drives won't mount on MacBook Pro M1, you can first try fixing it in the following two methods: 

Wipe all data on your external hard drive:

  • Carefully connect your external hard drive to your Mac
  • Go to the Applications folder in the Finder and click "Disk Utility"
  • On the storage media management windows, choose the external hard drive that you want to wipe and click "Erase"
  • Tap on the "Security Options" and move your pointer to the right to DOE 3-pass secure erase position
  • Click "Erase" to erase your external hard drive

Reinstall your macOS:

  • Restart your Mac
  • Hold the Command and R keys when your computer restarts. Release them when you see the Apple logo on your screen
  • Now, choose "Reinstall macOS" in macOS Recovery
  • Select your hard disk in the next window after click9ing "Agree"
  • Click "Install" to reinstall your macOS

What to do when you lose important files when you reinstall your macOS? Use EaseUS Data Recovery Wizard for Mac to help. This software can smoothly and perfectly recover lost files with a few clicks. It can recover data from formatted external hard drives on Mac and regain your precious memory.

Use EaseUS Data Recovery Wizard to recover deleted or lost files easily and quickly.

Tutorials on how to recover lost, deleted, or formatted data from HDD, SSD, USB, SD card, or other storage media on Windows and Mac.

People Also Ask

How to Restore Data from Formatted 4TB Hard Drive Mac

If you have accidentally formatted a 4TB hard drive and you want to recover some important files from it, you have come to the right place. This post will walk you through possible ways to help you restore formatted 4TB hard drive with tons of stuff.

Finley

Apr 16, 2024

How to Recover Deleted Files on Mac Without Software [macOS Ventura]

How can lost files on a Mac be recovered without the software? Following this guide, learn the methods for recovering deleted files on a Mac. We wholeheartedly endorse EaseUS Data Recovery for Mac users who want to recover deleted files successfully!

Jaden

Apr 16, 2024

Recover ExFat External Drive Missing Files on macOS

Are you looking for the best solution to recover your ExFat external drive missing files on macOS? You can always retrieve your precious data with the help of EaseUS Data Recovery Wizard for Mac.

Finley

Apr 16, 2024

How to Fix Internet Recovery for Mac Not Working

This post will help you solve Internet recovery for Mac not working when you erase the data and want to reinstall the macOS. Keep reading.

Finley

Apr 16, 2024

How to Fix PowerPoint Keeps Crashing on Mac

This post will look at one of the most effective ways to solve PowerPoint keeps crashing on Mac. Follow the instructions and get it fixed.

Finley

May 09, 2024

Recover Photos from Seagate Ultra Slim Portable Drive

This article introduces two methods to recover photos from external hard drives. The first uses third-party software EaseUS Data Recovery Wizard, and the second is contacting EaseUS data recovery service.

Brithny

Apr 29, 2024