

Then logout from Apple menu and login to the old account. Then in new account (which will be blank), go to System Preferences> Accounts or Users & Groups, select your old account and change/reset the password. So turn it back on, you should be able to create a brand new Administrator account (when creating the account, if you're asked to transfer information, select Don't transfer) When you enter last command and press return, the Mac will shut down. (If it returns any errors, then you are entering the commands incorrectly. Also, note down the spaces between the commands, like a space between mount and -, space between -uw and / etc

We can boot your Mac to a special mode called Single User Mode. My Name is ***** ***** I look forward to assisting you today with your question.
