Amanksfer

I have tried change the first boot device to USB for Windwos 7 password reset , but the USB is useless for me .the USB can't be recognized on computer , i am very confused maybe i should try the DVD or CD , but which is better ?

I have tried change the first boot device to USB for Windwos 7 reset , but the USB is useless for me . maybe i should try the DVD or CD , but which is better ?