1)    Winpass
2)    1
3)    4
4)    y
5)    reboot
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1)    If it stops after winpass push – q
2)    After winpass it will ask you for commend, your computer might want another command than your friends computer (commend 1 or 2)
3)    Chose commend of what you want to do (command 1,2,3, or 4).. In the end if you push 4. It will create Administrators account. Login in that account, push " Start, Control Panel, User Accounts”.  Now you can change account password.