The Ophcrack is a free tool to crack or recover Windows Password. It comes with GUI support and is very easy to use. You just have to download the Ophcrack ISO Image, burn it to CD/DVD or Flash Drive and boot your computer from it.
The Ophcrack program starts, detects the Windows Installation, locates the Windows User Accounts and recover the Windows Password.
It works fine with Windows 8, Windows 7, Windows Vista and Windows XP.