If you are stranded in a situation where you either don’t remember the password to your Windows account or are trying to help a Windows user by logging to a machine whose user has forgotten the password, this post will be of help to you.
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.
Follow the steps below to recover Windows user id and password information
1.) Point your browser to http://ophcrack.sourceforge.net/ and download ophcrack live cd image for your OS depending on whether you run Windows XP or Vista.
Download ophcrack live-cd for Windows XP or Windows Vista
2.) Once you have downloaded the image, you can write this image into a cd or dvd for use.
3.) Insert the DVD with the live cd image and reboot your computer. Ensure that you make CD Drive as the primary boot device. The computer should now boot using the Live CD you burnt on the DVD earlier.
4.) Select the first mode which says ” ophcrack graphic mode” and hit Enter.
5.) Upon hitting enter, the software will take you to a user interface and will begin scanning for the userid’s and passwords.
ophcrack gives you the list of userid and password combinations after completing the scan.
6.) Once you have the userid and password, you can remove the CD and login again to the Windows terminal using the userid and password obtained.
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