Reset the administrator Password (Windows/MAC)
Ophcrack is a free Windows password cracker based on rainbow tables. It is a very efficient implementation of rainbow tables done by the inventors of the method. It comes with a Graphical User Interface and runs on multiple platforms as well as live-cd.
Just Follow the steps below:
1. First download the ophcrack which is given below.
2. Make the cd of the image you downloaded.Then restart your PC and boot from the cd(Hope you know how to do this).
3. It will boot up to linux, and you’ll be able to handle it from there.
4. It might ask you ‘which partition’ you want to scan, just select the partition drive in which your OS is installed and then it automatically start the process.
5. It will find the password for every user on that disc partition.
To Get Click Here :- Ophcrack