Press ESC In 1 Seconds To Skip Startup.nsh Or Any Other Key To Continue

When booting to Windows you get this message followed by a shell:

Press esc in 1 seconds to skip startup.nsh any other key to continue

This is because the UEFI settings in the BIOS are set to boot from another disk or a disk that doesn’t exist. There are 2 ways to fix this. Firstly you can just type exit, then hit enter to load Windows (you may have to do this a couple of times). From here you will probably have to select to boot to the Windows disk each time you reboot. Another fix would be to change the slot your hard drive is physically plugged into. You can also fix this by reinstalling Windows or resetting UEFI settings in the BIOS.