Erasing a MacBook is a significant step, especially if you're preparing to sell or give it away. You can do this by restarting your MacBook and holding Command + R to enter Recovery Mode. From there, you can use Disk Utility to erase your hard drive. What prompted your decision to erase your MacBook? Are you planning on setting it up anew or parting ways with it? Let me know if you need more guidance on this process!