Tips to Erase External Drives Securely Using Disk Utility on MacOS

Tips to Erase External Drives Securely Using Disk Utility on MacOS

Hello Geeky, so today we are focusing on How to Erase External Drives Securely Using Disk Utility on MacOS. So please read this tutorial carefully so you may comprehend it in a better helpful way.

Guide: How to Erase External Drives Securely Using Disk Utility on MacOS

Your computer and the external drivers you use store all your personal information. Your computer drive contains all your email, contacts, documents, and more – among others words, any suspicious information you do not want to share with anyone. Hackers who want to exploit data that gives access to your passwords or identity are especially important to obtain this data. Before you remove your old computer, whether you throw it away or sell it, you should make sure that all this data is safely erased from your computer so that no one can access it.

Turns off non-Starting volume

Deleting volume is an easy way to do it for free up drive space. Most multimedia applications, such as Adobe Photoshop, require a large amount of contiguous disk space to work properly. Deleting a volume is a faster way to create that space than using third-party destruction tools. Because the process erases all your data on a single volume, some multimedia-savvy people create small volumes to handle the amount of data of a project and then clean up its volume before starting the next project.

The process of deleting the data here does not address any security issues that may be associated with the deleted data. Most data recovery programs can steal deleted data using this process. If you are concerned about security, use the security removal procedure addressed later here guide.

  • Select a volume from the discs and volumes listed on the left side of the Disk Utility window. Each disk and volume is identified by the same name and icon displayed on the Mac desktop.
  • Click the Erase tabs. The selected volume name and current format display are on the right side of the Disk Utility field.
  • Click Delete. Utility Disk raises the volume from the desktop, erases it, and then reloads it on the desktop.

Protect Delete a Volume

The Disk utility provides four options for secure data deletion on a single volume. Options include a basic removal method, a few more removal methods, and two removal methods that meet or exceed US Department of Homeland Security requirements for deleting confidential data from hard drives.

If you are worried about someone being able to retrieve the data you want to delete, use this security removal method.

  • Select a volume from the discs and volumes listed to the left of the Disk Utility window. Each disk and volume is identified by the same name and icon displayed on the Mac desktop.
  • Click the Erase tabs. The selected volume name and current format display are on the right side of the Disk Utility field.
  • Click Security Options to specify different removal options depending on the Mac OS version you are using.

Options for OS X Snow Leopard and Earlier:

Do not delete your data:

This method is fast but not safe. It removes the volume catalog directory but leaves the actual data intact.

Odo Data:

This method provides a better level of security. It erases your volume data by writing on it with zeros. The length of time this method takes depends on the size of the volume.

7-Pass Delete:

This method meets the safety requirements of the US Department of Defense 5220-22M Regulations for the elimination of magnetic media. This elimination process can take a long time.

Delete 35-Pass:

This is the highest level of data loss security that Disk Utility supports. It writes on data over a volume of 35 times. Do not expect this elimination process to end anytime soon.

Options for OS X Lion Via OS X Yosemite

The Security Options menu displays options similar to those in previous versions of the operating system, but uses a slider for making selections instead of a list of options. Slider options include:

Faster:

This is the fastest removal method. It does not target the file data, which means the recovery application may be able to recover the deleted data.

The data is not available:

This elimination method builds a path of zeros to all locations on the selected volume or disk. Advanced recovery processes can restore the data, but will require a lot of time and effort.

Pass-three:

This is a three-dimensional DOE compliant protection protection. It writes two records of ID data to a volume or disk and then writes a document of the data process known to the volume or disk.

The safest:

This method of deleting volume or disc is safe in accordance with the requirements of the US Department of Defense (DOD) 5220-22M for safe deletion of magnetic media. The volume loss is written seven times to ensure that the data cannot be corrected

  • Make your selection and click OK button to turn off Security Options.
  • Click Delete. The Disk utility removes volume from the desktop, cleans it, and then reloads it on the desktop.

Delete or Create a Mac Startup Drive Using Disk Utility

The Disk Utility cannot directly delete or perform the initial disk format due to the Disk Utility and all the operating system running on that disk. If the Disk Utility tries to clean the startup disk, it will, at some point, erase itself, which will reveal a problem. To get around this, use Disk Utility from a source other than the startup disk. One option is OS X Install DVD if you have one, which includes Disk Utility. Macs without optical drivers use the Recovery volume.

Using your OS X Install DVD

  • Install OS X DVD on your Mac CD / DVD reader.
  • Restart the Mac by selecting the Restart option in the Apple menu. When the display is empty, press and hold the C key on the keyboard.
  • Transferring from DVD can take time. After you see the gray screen with the Apple logo in the center, release the C key.
  • Select Use English for the first language when this option appears and then click the arrow button.
  • Select Disk Utility from the Applications menu.
  • When the Disk Utility launches, select the drive from the disks and volumes listed on the left side of the Disk Utility window.
  • Click the Erase tabs. The selected driver name and current format display are on the right side of the Disk Utility field.
  • Click Delete. The Disk utility removes the drive from the desktop, erases it, and then reloads it on the desktop.

Restart your Mac

  • Extract Disk Utility by selecting Disk Utility Disk from the Disk Utility menu item. This will take you back to the Install OS X window.
  • Disable OS X installer by selecting Disable OS X installer from the Mac OS X installer menu.
  • Set disk startup by pressing Disk Start button.
  • Select the disk you want to be the starting disk and then click Restart button.

Faq

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