I just purchased a new Toshiba Satellite C55t-A5123 and I keep getting the message "no bootable device please restart system" we've tried pressing f2 as it powers up. When the menu pops up we go to advanced settings and there isn't an option to go to boot mode. We've also tried pressing f12 but with no luck finding a safe mode not recovery mode. We've tried pressing 0 (zero) when powering on and holding it til it beeps, when it beeps it requires us to put in our password. When I put in the password and press enter it automatically takes me to "no bootable device please restart system" someone PLEASE help me before this laptop gets thrownvou t of the window!