Here are a few suggestions to help you recover or reset your password:
1. Reset using your Apple ID(available in OS X Lion or later):
If you've previously associated your Apple ID with your user account, you can follow these steps to reset your password:
1. On the login screen, click on your username, and enter an incorrect password a few times.
2. You should see a message saying "If you forgot your password, you can reset it using your Apple ID."
3. Click on the arrow next to the message to start the password reset process.
4. Follow the on-screen instructions to reset your password using your Apple ID.
2. Reset password using Recovery Mode:
If you can't reset your password using the Apple ID method, you can try resetting it using Recovery Mode. Here's how:
1. Turn off your MacBook Air.
2. Press and hold the `Command` and `R` keys while pressing the power button to turn on your MacBook Air. Release the keys when you see the Apple logo.
3. Your MacBook Air should now boot into macOS Recovery mode. Choose your language and click the arrow to proceed.
4. In the macOS Utilities window, choose "Terminal" from the "Utilities" menu.
5. In the Terminal window, type `resetpassword` and press `Enter`. This will launch the Reset Password utility.
6. Select the user account for which you want to reset the password, enter a new password, and provide a password hint if desired.
7. Click "Save" and then restart your MacBook Air. You should now be able to log in using the new password.
3. Reset password using another admin account:
If there's another admin account on your MacBook Air, you can use it to reset the password for your user account:
1. Log in to the other admin account.
2. Open "System Preferences" and go to "Users & Groups."
3. Click the lock icon and enter the admin password to unlock settings.
4. Select your user account from the list on the left, and click the "Reset Password" button.
5. Enter a new password, and optionally a password hint, then click "Change Password."
