Reset Password

Forgot Your Account Password

For Lion, Mountain Lion, or Mavericks

Boot to the Recovery HD:

Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.

When the menubar appears select Terminal from the Utilities menu.

Enter resetpassword at the prompt and press RETURN. Follow

instructions in the dialog window that will appear.

Or see:

Reset a Mac OS X 10.7 Lion Password

OS X Mountain Lion- Reset a login password,

OS X Mavericks- Solve password problems,

OS X Lion- Apple ID can be used to reset your user account password.

For Snow Leopard and earlier with installer DVD

Mac OS X 10.6- If you forget your administrator password,

OS X- Changing or resetting an account password (Snow Leopard and earlier).

For Snow Leopard and earlier without installer DVD

How to reset your Mac OS X password without an installer disc | MacYourself

Reset OS X Password Without an OS X CD — Tech News and Analysis

How To Create A New Administrator Account - Hack Mac

The procedure, assuming the MBA has a version of Mac OS X Lion or newer: restart holding the Command and R keys. When the machine has restarted, from the Utilities drop down choose Terminal. When Terminal has opened, type EXACTLY the following:

resetpassword

and press Enter.

When the Resetpassword window has opened, pick the internal storage (Macintosh HD) and the user, then type a new password twice.

Click Save and accept the next dialog window that opens up.

Go to the lower right of the Reset Password window and reset the home directory permissions.

Then go to the apple left side of the menu bar and Restart.