2 Methods to Safely Erase a Hard Drive on Mac System

At times, you will need to erase a hard drive for some reasons. In this process, any improper operations can destroy the hard drive. Now, in this article, we will expose 2 ways to safely erase a hard drive on Mac.

Before you give an old hard drive to someone else or take it to be recycled, you’d better erase this drive. As we all know, erasing a hard drive will clear all the data on this hard drive. Therefore, in this way, you will not be worried about your data being leaked. Some users may select to simply delete the files on this drive. Yet, in fact, deletion will not permanently disappear until new data gets written into the drive. That is to say, even if you have deleted files, other persons still can recover them via some special means, such as PST recovery via third party tools. Thus, so as to protect your data from being retrieved or accessed by untrusty parties, you are better off erasing the hard drive. Now, here we’ll take the Mac platform as an example and teach you 2 effective approaches to erase a hard drive.

2 Methods to Safely Erase a Hard Drive on Mac System

Method1: Disk Utility

Disk Utility is a free application on Mac system. It has multiple abilities, including partitioning, repairing, verifying, erasing a hard drive and so on. Also, it is easy to use. Therefore, if you want to securely erase your hard drive on Mac, you can use it through the following steps.

  1. At the very beginning, on Mac, you need to access “Applications” folder.
  2. Then you can find and open the “Utilities” folder, under which you can launch the “Disk Utility”.
  3. Next, you should connect that the hard drive to be securely deleted. And click and pitch on it on the left sidebar.
  4. After that, you can click the “Erase” button on the top menu bar.
  5. Now, a dialog box will show up, in which you should hit the “Security Options” button.
  6. You will see a sliding scale with four options, from “Fastest” to “Most Secure”.
  • “Fastest” erase option is quick but virtually insecure. By this means, data still can be rebuilt via a recovery tool.
  • Thus, you have to move the slider to the right, to demand Disk Utility to progress more secure erasing on the disk.
  1. After you select a level of secure erasing, you can click the “OK” button.
  2. Then click on the “Erase” button at the initial prompt
  3. Finally, Mac will start erasing the selected hard drive.

Method 2: Command Line

Apart from making use of Disk Utility, you can erase a hard drive from command line on Mac system as well. It will be performed in the terminal application. Now take the steps below:

  1. First off, you need to launch the Terminal application on your Mac system.
  2. After that, in the text-mode terminal, you can input the “diskutil secureErase HFS+ diskname diskidentifier”. Note to change the details as per your actual case.
  3. Subsequently, press “Enter” key button.
  4. If required, you have to input your admin credentials to confirm the action
  5. Finally, just wait for a while until it completes.

Author Introduction:

Shirley Zhang is a data recovery expert in DataNumen, Inc., which is the world leader in data recovery technologies, including corrupted mdf and outlook repair software products. For more information visit www.datanumen.com

One Comment

  1. Comment by Margy Lunceford:

    This article is very useful and it gives many good things to know. Thanks.