Hi I downloaded a windows 7 iso. I successfully used the windows 7 usb tool from microsoft and used the iso to create windows 7 on an sd card. My machine is currently running windows 8 I want to use the usb to get the windows 7. How do I do that? I know you have to go to bios, and all that but what changes to I need to make for windows 7 to but from the sd card? My computer is a HP desktop with bios version 2.15.1227. Thanks.