I'm trying to reset my daughter's Toshiba satellite laptop. I trying pressing the zero button while if was starting up and it didn't work. I keep getting a message saying reboot and select proper boot device or insert boot media device and press any key.
Check in the BIOS that it is looking at the HD as the primary boot device, and if it even seeing the drive. What OS does it have - have you tried to boot to safe mode if Win7 or earlier. If you have an OS CD and the laptop has a CD reader, try that and see if it sees the HD and if so could try a repair