How to Erase start-up drive on macOS Mojave 10.14

Written By Vishal
Approved By Rohit Arora
Updated on 7 Jun, 2023
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Summary: It is advisable to back up all the data on the Macintosh HD before you implement the steps to erase the macOS SSD volume.

FYI, Stellar Data Recovery Professional software helps you recover an accidentally erased Mac hard drive. Do consider this tool if you have erased your drive unknowingly.

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Erasing macOS Mojave 10.14 Safely

Hope you have backed up the data safely to an external hard drive. Follow the sequences of steps to erase macOS Mojave SSD/HDD:

Restart your macOS Mojave and press-hold Command and R keys simultaneously. Shortly, you will boot into macOS Utilities often known as Recovery Mode.
You will be greeted with four option under macOS Utilities. Navigate to the Disk Utility out of the four provided options. Disk Utility mentions – “Repair or Erase a disk using Disk Utility.”
In the Disk Utility windows, select your APFS Macintosh HD from the left corner and press Erase tab
Select name and format for your storage drive and press Erase.

Warning: Erasing a Macintosh HD will remove your data stored on it. Once erased you can’t recover data without a data recovery software hence proceed with caution.

This is how you can erase your APFS start-up disk drive on macOS Mojave 10.14.

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About The Author

Vishal

Vishal is a data recovery expert @Stellar. He addresses data loss scenarios on a Mac. He intends to help people solve their macOS problems. Besides, Vishal prefers to read about astronomy and autobiography, and his favorite is Steve Jobs - The man who thought different written by Karen Bluementhal.

3 comments

Sander says:

February 11, 2022 at 3:51 pm

Thanks for this. Now I deleted my whole mac with the ios.

Reply
Matthew Adam says:

November 9, 2018 at 5:21 am

I have a MacBook Pro with Mojave 10.14. I tried to erase my Start up disk from Disk Utility but I found all the options are grayed out. I am unable to erase my disk. Am I missing something or is there any other alternative to do so?

Reply
1. Vishal says:
  
  November 22, 2018 at 9:54 am
  
  If you are unable to delete your Startup disk, you need to start up from the external bootable drive.
  
  Reply

How to Erase start-up drive on macOS Mojave 10.14

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