GOD I HATE WINDOWS 8

got a friend of the familys windows 8 laptop now hes forgotten password but wants to give it to his grandaughter for uni

i managed to change the uefi mode to csm and ahci to compatable to boot to usb as it wont see my zalman

so have created bootable usb with hirens boot and followed this guide http://www.youtube.com/watch?v=HoYv1H6-E98

does it work , does it bollocks

so before i launch it out the window any other methods i can try peeps ?