hang-the-9 :
If you are sure that the drive you are using is bootable and works in another system, then F12 key during boot up should give you the option of boot device, is that what you are hitting?
well i don't know anymore ,i took out the drive reloaded win8.1 on similar toshiba then put it back in problem laptop and set harddrive as first boot ,diable secure boot but still "no boot device-restart system"
ANYONE PLEASE HELP