Wipe and Reinstall macOS on a MacBook:

About:

This guide explains how to completely wipe your MacBook and reinstall macOS. The steps differ slightly depending on whether your Mac has Apple Silicon (M1, M2, M3) or an Intel processor. Wiping and reinstalling macOS can help fix software issues, prepare the Mac for a new user, or ensure a clean system setup. It removes all data from the Mac, so make sure important files are backed up before starting.

Step 1 – Enter Recovery Mode

For Apple Silicon Macs (M1, M2, M3):

1, Shut down your Mac completely.
2, Press and hold the power button until you see “Loading startup options” (about 10 seconds).
3, Click Options, then Continue.
4, You are now in macOS Recovery Mode.

For Intel-based Macs:

1, Shut down your Mac.
2, Turn it on and immediately press and hold one of these key combinations:

• Command (⌘) + R → Reinstall the latest macOS installed on your Mac.
• Option + Command + R → Upgrade to the latest macOS compatible with your Mac.
• Shift + Option + Command + R → Reinstall the macOS your Mac originally came with (or closest available version).

3, Keep holding the keys until you see the Apple logo or a spinning globe.
4, You are now in Recovery Mode.

Step 2 – Erase the Mac

1, Click Recovery Assistant → Erase Mac.
2, Click Erase Mac again to confirm.

Step 3 – Reinstall macOS

1, Choose Reinstall macOS version name.
2, Select Macintosh HD and click Continue.
3, Click Agree to accept the license agreement.
4, Click Continue and wait for macOS to reinstall. This may take some time.

And you are done 😄