Home > Questions

How to Fix External Hard Drive not Mounting on Mac?

Hi, I recently bought a new apple Macbook Air running Monterey. When I go to use my external hard drive, it won’t mount. It works on my old Apple Macbook Air running El Capitan but not on my new Mac. I have downloaded NTFS for Mac where it sees the drive but won’t mount it. I tried Disk Utility where it gives an error code 49153. Can anyone help please?

Best Answered by

iBoysoft author Sherry Song

Sherry Song

Answered on Wednesday, November 26, 2025

Hello, here are some fixes you can take.

(1)Uninstall the old NTFS driver for Mac and install iBoysoft NTFS for Mac. This tool is better at mounting and writing your NTFS drive seamlessly on Mac.

 Download

iBoysoft NTFS for Mac

Rating:4.8

     

(2)Repair your drive in Disk Utility.

(3)Log out and log back in the Apple menu.

(4)Restart your Mac in Safe Mode.

(5)Quit the fsck process.

(6)Disable Time Machine backup.

If these fixes can't help you, maybe you have to reformat the drive. Pay attention to doing a backup on Mac.

Also read: Fix com.apple.DiskManagement.disenter error 49153 on Mac

People Also Ask

Read More Questions

Read More Advice From iBoysoft's Computer Experts

Target Disk Mode

How to Use Target Disk Mode on Intel Mac & M1/M2/M3 Mac?

This is a guide on how to enter Target Disk Mode on Intel Mac & Apple silicon M1/M2/M3 Mac, and how to fix Target Disk Mode not working.

mac system report

Get to Know System Report on Your Mac[macOS Ventura]

An explanation of the system report on Mac, it also guides on how to check system report/system information in macOS Ventura and how to use the Mac system report.