syskey

i tries the syskey command using run and created a password. but now it says that it cant be disabled. is there any way of disabling it? i use win xp pro sp3

First of all this is not anything illegal.i am studying computer hardware and my teacher said that it is impossible to crack syskey,but i wanted to prove her wrong.But now i'm in a dilemma.I have downloaded saminside and cain&abel,can anyone tell me how to crack sykey(syskey only,not...