If you have lost or forgotten your Mac OS X password, you may be able to recover it with one of the methods outlined in “Reset a Lost OS X Account Password” from Mac tips blog Mac OS X Tips. The article discusses a number of different situations, including:
- Recovering/changing a user account password.
- Resetting the administrator password.
- Resetting a FileVault protected user’s account.
- Resetting a password without the Mac OS X installation disc.
The last option, resetting a password without the installation disc, will permanently damage a FileVault-protected account. If your account is protected by FileVault, don’t even try it.



