Create a new (administrator) account without knowing any password

While computer's starting, press Command-s.

At prompt, type:

/sbin/mount -uw /
rm /var/db/.AppleSetupDone
reboot

After restarting, you will be asked to create a new administrator account. No data is erased.

Feedback

Misleading. You should explain to press Return after each line of typing.
Lance
Aug 23, 2012
#1