Another cause could be that you have a faulty device such as a DVD drive or CD drive.The computer is trying to find all devices connected to the computer and comes across a problem device.Of course you can try everything listed below first as you might get lucky! 🙂 There are many possible causes when your computer boots to black screen and I will try to mention as many as possible.Some causes of a black screen are incorrect shutdown of your computer, not waking from sleep mode, not knowing where to boot to, corrupt software, damaged start up, and the list goes on.In this example it is also possible to see a pc blank screen where there is nothing but a black screen and that’s it.
Either way, the computer might be trying to boot to this device but it is not a bootable device.This often causes a black screen with a flashing cursor.If you disconnect the faulty DVD drive your computer can start without errors.In some laptops the CMOS battery could be easily accessed from the bottom, as it shown on the picture below. In some laptops the CMOS battery is hidden under the keyboard. Here’s the most common problem related to the CMOS battery.Each time you turn off the laptop it resets date and time back to factory defaults.Please note that this particular error has stopped your computer from entering Windows.