If you do get past the black screen, then the problem is likely the other hard drive. In the former case you can try inserting another hard drive (if you have one) to see if you get past the black screen. In the latter case you will need to go into the BIOS and review your boot sequence. If you progress past the black screen then there may be something wrong with the hard drive (or Windows), or your BIOS configuration which is causing some sort of lengthy delay.
How to Fix: Laptop Black Screen, Windows Won't Boot Note that these steps apply to any version of Windows, and not just Windows 10. There are a few things you can do, which I will explain in detail below. Some possibilities include: the laptop motherboard or display may have died, or a laptop component failed and needs to be replaced, your BIOS is corrupt, and possibly the Windows boot sector (or Windows itself) has gone corrupt. This is a fairly common issue, and is either a hardware problem or a Windows boot problem. What can I do to get my laptop working? " The power light turns on, and the screen appears to be on (the screen backlight is on), but the screen is black and it won't boot into Windows 10.
Yesterday the laptop was working perfectly fine, but this morning I tried to turn it on and all I get is a black screen.