This is a fairly common issue, and is either a hardware problem or a Windows boot problem. 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. There are a few things you can do, which I will explain in detail below. Note that these steps apply to any version of Windows, and not just Windows 10. How to Fix Laptop Black Screen, Windows Won't Boot Here are a few things you can try: First, unplug the battery from the laptop and then try and power on with only the power cord plugged in. If it works without the battery plugged in, then most likely your battery needs to be replaced. If you still have a black screen, keep the battery unplugged and proceed to the next step. Unplug the power cord, turn the laptop over and take the hard drive out of the machine, then power the system back on again. If you progress past the black screen then...