Press the "F2", "F10" or "Delete" key when you see the BIOS prompt text appear on the screen. This will vary with model, but pressing the correct key will open the BIOS menu.
1. Change Boot Priority Order. Turn off your HP laptop and then turn it on.
2. Reset BIOS. SMART disk error 301 can also occur when there is an issue with the BIOS/firmware.
3. Reseat Hard Drive.
4. Hard Reboot.
5. Use Data Recovery Software.