HT4399: MacBook Air (Late 2010): Frequently Asked Questions about Software Reinstall Drive
Learn about MacBook Air (Late 2010): Frequently Asked Questions about Software Reinstall Drive
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Apr 5, 2012 9:55 PM in response to jcachby Kappy,Mac OS X 10.6 Help- If you forget your administrator password
For Lion - 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.