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Lost Mac password

I have a customer that would like to install Carbonite onto his Mac but he forgot his password.

How can we reset or otherwise get around this?
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Sheldon Livingston
Asked:
Sheldon Livingston
2 Solutions
 
Christopher Jay WolffWiggle My Legs, OwnerCommented:
Which one?

Here is a summary about passwords from Apple.

http://support.apple.com/kb/PH18672?viewlocale=en_US&locale=en_US

Maybe that is enough to get you going, but otherwise let us know more details, like which one, and if there are backups, recovery key, etc. and which version of OSX.
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strungCommented:
Assuming that it is the log in admin password that he has lost, and assuming he has not turned on FileVault, then do the following:

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 to the new Admin Account, go to the Users & Groups prefs account and change the password on the old admin account to something your user can remember. Then log out of the new account and log into the old account.
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Danny RobinsonIT Support ConsultantCommented:
If you have Snow leopard and older please follow these steps to get into recovery and reset your password.

http://support.apple.com/en-gb/HT201240

If you have a later Version please follow similar but slightly different steps below,.

http://support.apple.com/en-gb/HT201240
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Sheldon LivingstonConsultantAuthor Commented:
This is concerning a iMac 10,1 3.06 ghz
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strungCommented:
If you have the original system DVD that came with the computer, or another one that will boot the computer (by booting while holding down command-c), then you can follow the instructions posted by Danny Robinson. If you don't have a boot DVD, then follow my instructions.
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Sheldon LivingstonConsultantAuthor Commented:
I will have a go at this strung... thank you.
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