Method One: Official solution. Find out the computer's original system disk, can not find to borrow one or burn a piece, restart the computer, start the time by pressing the C key, choose the language after the installation, click on the "Common tools", there is a "Reset password", this time you will be able to reset the Mac OS system administrator password.
Method Two: The hacker solves the method. Boot, press "Cmd+s" when starting. A single user model is entered. The single user mode of MAC OS has access privileges (root access privilege) without requiring a root password (root password). A prompt like Dos #root > appears. Gradually enter the following command under #root>, note the space, capitalization
01.
//执行硬盘检测(只读), 这一步可以省略
02.
/sbin/fsck -y
03.
04.
//加载文件系统(读/写)
05.
/sbin/mount -uaw
06.
07.
//删除初始化设置时的OSX生成的隐藏文件”.applesetupdone”
08.
rm /var/db/.AppleSetupDone
09.
10.
//重启
11.
reboot
A welcome screen similar to the installation appears after restarting the boot. Don't worry, things are not lost. Just like the first installation, re-establish a new Mac OS Administrator account. Then under the new Administrator open the system pre-account, open the bottom of the lock, ask the password, with the new administrator password to log in. will see at least two accounts, the new Administrator's account and the original account, the original account in the point, select Password-Change Password ... You don't have to have a previous Mac OS password to set up a new password directly.
Click on the login option below (small house), check automatically login to the right, and select your original account in the dropdown menu.
Reboot, you are done. At this point to crack Mac OS boot password work done.
If you don't like to have more than one account, delete it. System pre-account, choose a new admin account, click the minus sign above the lock.
Mac Administrator password hack