If you want to hack or break the password of any windows XP system then you should have physical access to the system and then follow these simple steps.
In case of user password boot the pc in safe mode by pressing the F8 key and then selecting the Safe Mode option. You can now log on as an administrator and XP wont prompt for the password. Incase of an administrator account try rebooting the pc in DOS.
access C:\Windows\system32\config\sam and
Rename SAM as SAM.mj
Now XP wont ask for password next time You Login. Also
=> Go to the cmd prompt.
=> Type net user *.
It will list all the users.
Again type net user "administrator" or the name of the administrator "name" *.
e.g.: net user Jayanthi *(where Jayanthi is the name).
It will ask for the password.
Type the password and there you are done.
Logging In As Administrator:
Hold the Ctrl-Alt key and press
To unhide the Administrator account so it does show up:
Go to HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ Winlogon \ SpecialAccounts \ UserList
Unhide the Administrator key by giving it a value of 1