Restart first, enter the BIOS interface, and check whether the hard disk detection is normal.
If the hard disk is detected normally and the startup settings are correct, it is generally a system problem.
You can restart the computer and press F8. If the advanced menu can be displayed, try to select the last correct configuration to see if it can be started. If you still return to this interface, you can only solve it by reinstalling or repairing the system.