I was trying to format my toshiba satellite c655 with new OS but it's not working, now when i turn it on, it says: check cable connection! PXE-M0F : Exiting Intel PXE ROM. No bootable device -- insert boot disk and press any key. I changed the boot order at the bios but still can't locate my installation media (USB) for the installation to begin. I have absolutely no idea what to do.. someone please help me!!!