Can any one help please, just purchased my imac today, switch on and followed the setup, it wanted a password so I put one in. Now it keeps saying wrong password, but I know it is the right, and only one I use? I do not have a DVD or CD, How can I re-set my password? This is my first day on a Mac
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.