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MacOS - Change the admin password (no installation disk)

December 2015

In this tutorial you'll learn how to change or reset the Mac admin password without the installation disk. This solution implies the the creation a new account on the Mac OS X!


The solution is to create a new admin by deleting a specific file. You need to enter terminal and create a brand new admin account:
  • 1. Reboot
  • 2. Hold Apple +S after you hear the chime (Command + S on new models).
  • 3. When you get prompted, enter these commands in order to create a new account (hitting return after each line):
  • mount -uw /  
  • rm /var/db/.AppleSetupDone 
  • shutdown -h now 
  • 4. After your Mac rebooted you should have a brand new account as administrator.
  • 5. Log-in and delete the previous admin account!

Thanks to xpcman for this tip.
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Published by aakai1056. - Latest update by Jeff
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