How to Wipe a Computer Clean of Personal Data: A Step-by-Step Guide

If you’re planning to sell, donate or recycle your old computer, it’s important to wipe it clean of any personal data to prevent identity theft or data breaches. In this tutorial, we’ll guide you through the process of wiping your computer clean of personal data for both Intel-based Macs and the latest M1-based Macs.

Steps to Wipe a Computer Clean of Personal Data

Intel-based Macs

1. Back up important files and log out of iCloud.
2. Copy keychains to a flash drive (optional).
3. Hold down the Shift + Option + Command + R keys while starting your Mac.
4. Open Disk Utility and erase your integrated hard drive.
5. Choose Reinstall MacOS (or OSX) to reinstall the original operating system.
6. Follow the onscreen instructions to complete setup.

M1-based Macs

1. Back up important files and update MacOS to the latest version.
2. Turn off your Mac and then turn it back on while holding down the power button.
3. Click Options and enter a username and password.
4. Click Disk Utility > hard drive > Erase.
5. Enter a new Name (Macintosh HD) and choose APFS as format.
6. Click Erase Mac and Restart, then follow the onscreen instructions to complete setup.

FAQ

1. How can I back up my important files?

You can back up your important files to an external hard drive or cloud storage service like iCloud, Dropbox or Google Drive.

2. Do I need to copy my keychains?

Copying keychains is optional, but it can save you the hassle of re-entering passwords for your accounts on your new computer.

3. How do I reinstall MacOS?

Hold down Command + R to reinstall the latest MacOS installed on your Mac, or Option + Command + R to update to the latest version of the operating system supported by your computer.

4. Can I skip the setup process if I’m selling my computer?

Yes, you can skip the setup by pressing Command + Q and let the new owner complete that process.

Final Remarks

We hope this step-by-step guide on how to wipe a computer clean of personal data has been helpful. If you have any questions, don’t hesitate to contact us. If you found this article useful, please share it with your friends and family to support us.