Step To Reset Windows XP/VISTA & WINDOWS 7 Password

How to Reset XP / VISTA / Windows 7 Admin Password

*** To do this you would need Windows Vista or Windows 7 setup DVD ***

1. Start Windows RE by booting the Windows Vista or Windows 7 setup DVD and then selecting “Repair” instead of “Install Windows.”
2. Click on the Command Prompt.
3. Type C: (or D: for your Windows OS) .
4. Type the following command ( replace “c:” with the correct drive letter ) :                                                          copy c:\windows\system32\sethc.exe c:\
5. Type this command to replace sethc.exe with cmd.exe :                                                                                 copy c:\windows\system32\cmd.exe c:\windows\system32\sethc.exe
6. Reboot your computer and start the Windows installation where you forgot the administrator password.
7. After you see the logon screen, press the “SHIFT” key five times.
8. You should see a command prompt where you can enter the following command to reset the Windows password : net user you_user_name new_password 
9. If you don’t know your user name, just type net user to list the available user names.
10. You can now log on with the new password.

Then reboot your system. Done