Now a days when everyone is talking about security, hard passwords and other security related concerns, I would like to share this service with you guys to crack the administrator password of windows.
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.
Please download the live cd from the above given link.
Burn the Live CD by using any ISO burner software.
boot your system using the newly created CD.
Here you goes!!!