After restarting your Mac, press and hold the Command + R keys until you see the Apple logo. Go to the Apple Menu in the upper-right corner and choose Utilities. Then click Terminal. In a terminal window, enter “reset password. Next, type your password and a hint.
On the bottom left, look for Users & Groups. Select the padlock symbol. Enter your password. On the left side, select the admin user and then click the sign at the bottom. Select an option from the list and then press Delete User.
To delete a user and/or their associated data, open the Users & Groups preference panel. Select “Users & Groups,” then press Control+click on the username. This will bring up a drop-down menu containing all current users; simply select the one you want to remove and click Delete. To change a user’s password, follow.
On your Mac, go to the Apple menu System Preferences, then Users & Groups. If the lock in the bottom left corner is unlocked, click it to open the preference pane. In the list of users, choose a standard user or a managed user, then select “Allow this user to administer this computer.
Select your user account from the drop-down menu and push the – button in System Preferences to remove it. If you’re using Fast User Switching, you must log out of the account you want to delete.
