Leo restarted the computer. As the screen flickered, he began tapping the —then Delete , then F10 . Nothing. He tried again, this time rhythmically tapping F12 . Bingo.
He selected and pressed + until it jumped to the #1 spot. He saved the changes by pressing F10 and confirmed “Yes.” how to boot from usb in windows 7
“Please, just read the USB first,” Leo whispered. Leo restarted the computer