To Break Password in Windows Xp Logon.....

I will tell you the simple procedure to delete the sam file(to delete the password).
what you have to do is start your computer in command promt.
And go into C: (assuming c: is ur drive where window is store.)
And type [cd windows]press enter.
(if u r using win2000 then type [cd winnt] instead of [cd windows]).
Then type [cd system32]enter.
Then [cd config]enter.
Then type [del sam].
And reboot your system.
Heres your password is deleted and you will be able to logon without password.
It will surely work just try it.