Laptop with dual hard drives (solid state and mechanical) booting up recognizes only one mechanical drive, and you have to remove the mechanical drive before you can boot from the solid state drive! I

Laptop with dual hard drives (solid state and mechanical) booting up recognizes only one mechanical drive, and you have to remove the mechanical drive before you can boot from the solid state drive! Insufficient power supply Is your laptop hard disk installed inside the machine? If it is the peripheral kind of USB interface is of course the problem of insufficient power supply, if it is built-in will not have this kind of problem, usually is the problem of your settings, really can not put the two hard disk swapped to see if it works, I see is that you did not set up the SSD as the second boot device. The first thing you need to do is to set the SSD as the first boot device in the BIOS.