Problem: I got a laptop here but the password is expired, there are no other user names on which i can break into. I tried using Microsoft’s password recovery disk but that failed. Now I have to use my old computer to ask for help! Any ideas?
Solution: You could use third-party password recovery software to break Windows 7 password since you neither have another user account nor a password reset disk.
Case 1. Windows Password Buster
Windows Password Buster is a powerful Windows password recovery tool. It can help you reset any forgotten Windows login password including local administrator, domain administrator, and other user account password. With this efficient password recovery utility, you can break into the computer without formatting the system, no matter what your PC brand and Windows OS are.
Although this tool costs you a few dollars, it can help you break into Windows 7 computer in minutes without any data loss. If you decide to use Windows Password Buster to break Windows 7 password, you can follow the steps below.
1. Download and install Windows Password Buster in an accessible computer.
2. Launch the program to burn a bootable CD/DVD or USB flash drive.
3. Insert the bootable disk into the locked Windows 7 PC and boot the PC from the disk.
4. Reset or remove the forgotten Windows 7 admin password.
Case 2. Ophcrack
Ophcrack is a free open source (GPL licensed) program that crack Windows 7 password by using LM hashes through rainbow tables. It is a very efficient implementation of rainbow tables done by the inventors of the method. It comes with Graphical User Interface and runs on multiple platforms.
This tool will figure out your password rather than resetting it. On most computers, Ophcrack can crack most passwords within a few minutes. Ophcrack can crack passwords no longer than 14 characters using only alphanumeric characters. Although it isn’t as efficient as Windows Password Buster, in my regard, you can try it as it is completely free of charge, if you are good at computer.
Visit its official site, download the free ISO image, burn it to a CD and boot from the CD. The Ophcrack program starts, locates the Windows user accounts, and proceeds to break Windows 7 password. Please note that the tables used to crack Windows Vista/7 passwords is different from the tables used to crack Windows XP passwords.