If you still can't reset your password, erase your Mac When you're asked to select an admin user you know the password for, choose Erase Mac from the Recovery Assistant menu in the menu bar. From the Erase Mac window, click Erase Mac, then click Erase Mac to confirm.
Helpful answers
How to Factory Reset Mac or MacBook (pre-macOS Monterery)
0:123:53The first trick is the power plus option key trick you got to hold both of them down at the sameMoreThe first trick is the power plus option key trick you got to hold both of them down at the same time.
Access Utilities in the Apple menu. Choose Terminal from the Utilities window. Type “resetpassword” (in one word), and click Return.
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1:355:53Again is to turn the laptop on. And once that screen turns on what you want to do is hold theMoreAgain is to turn the laptop on. And once that screen turns on what you want to do is hold the command. And s button together. And then you'll get this um terminal thingy bob here.
0:1611:35This keep holding on to command r until you guys see this the apple logo plus a loading bar once youMoreThis keep holding on to command r until you guys see this the apple logo plus a loading bar once you see the loading bar go a little bit or even halfway.
If you have done all the above, here are the steps to follow:
iPhone 7: Press and hold the Volume Down and the side button at the same time. iPhone 6S & older: Press and hold both the Side and Top buttons. Hold these down until the iTunes connection recovery mode screen appears. Now move across to your PC, and select the “Restore” button in iTunes.
' Under “All Devices” locate and select the iPhone you want to factory reset. Select “Erase iPhone” in the menu that appears and iCloud will erase all contents and settings on the device, including the passcode. You will now be able to access the device without needing the passcode and create a new one.6 days ago
When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select the startup volume from the left side list then click on the Erase tab. Set the format type to Mac OS Extended (Journaled) then click on the Options button. Select the one pass Zero Data option and click on the OK button.
As it's loading hold the Command button and the R key. Something will come up called OS X Utilities. Click on Disk Utility and click on "Mac OS Extended". Then, click Erase.