When the screen goes black on startup, that’s definitely bad news, especially since it’s hard to diagnose a problem without being able to see the information on the screen. This problem is usually related to hardware and connections, but many users also received it right after updating Windows 10 version, so below we will see how to fix one of two things, and we recommend that you follow the steps that we will tell you next in order.
What to do if the screen goes black when starting the PC?
Of course, the first thing to check are the screen connections. We are aware that you are probably rolling your eyes while reading this truism, but do so anyway as the cable that goes from the graphics card to the monitor may have accidentally come loose, so it is advisable to start with the more basic and check that the cable connection is correct. In fact, even though the cable is well connected try to plug it in other video input watch just in case. Also, one more obvious: make sure that the the monitor is on
If possible, try to connect the monitor to another PC and see if it works on another PC. Otherwise, it could be a sign that the monitor is defective and you need to change it to a new one or handle the warranty with the manufacturer; Alternatively, you can try another monitor on the PC, and if it works, it could also mean that the other monitor is faulty.
Likewise, if you have a desktop computer and are using a dedicated graphics card, try connecting the monitor to the integrated graphics card (that is, to the video outputs on the motherboard) instead of the card. graphic. If this is how the monitor works, the problem is with the graphics card and the first thing you need to check is if it is working fine on another PC, connect it to another PCI-Express socket on the motherboard and access the BIOS to verify that it has not been disabled.
Depending on the motherboard manufacturer and model, this option can be found in one place or another but it is usually in the advanced options. As you can see in the above screenshot of an ASUS card, the option can be found in Advanced options -> System agent settings -> Graphics card settings. If when connecting the dedicated graphic the screen remains black but when connecting the integrated it works, you would surely have this parameter in automatic, and since it did not detect a signal from the dedicated GPU, the system is switched to using the integrated, a sign that something is wrong with your dedicated graphic.
Another possible scenario that you should try if none of the above worked is, with the PC turned off, to disconnect absolutely everything except the power cable and the video cable. Turn on the PC and see if the screen shows an image or if otherwise it keeps going black … if the computer shows an image after that, connect your devices one by one and restart the computer until you find the one that’s causing the problem. It seems absurd for a USB device to cause the screen to not display any image, but we guarantee it works sometimes.
What if the problem was software?
At first, we pointed out that some users have the problem that the screen stays black right after updating Windows 10; This is a common problem logically related to software which fortunately has a simple solution: turn on the computer and wait a few seconds for the operating system to start normally, even if you do not see anything on the screen. When you think the computer has already started, press the button key combination WIN + CTRL + SHIFT + B
Por otro lado, también puedes intentar arrancar Windows 10 en Modo Seguro ya que de esta manera el sistema operativo se inicia solo con los programas y drivers esenciales, por lo que si esto funciona sabrás que hay algún programa, driver o software que está causando el problem.
To force the PC to boot into Safe Mode, the easiest thing to do is turn on the computer, wait about 10 seconds, and press the physical reset button on the PC case. Do this three times in a row and Windows 10 Automatic Repair will be enabled, or if the problem is with the drivers or software, it should already show you an image on the screen. Follow the instructions below if this is the case:
- Click Advanced Options, then click Troubleshoot.
- Click on Advanced options again.
- Head to Startup Settings.
- Click on the Restart button.
- In Startup Settings, press F5 to boot into Safe Mode with Network Settings.
Once Windows boots into Safe Mode, ideally you should perform a full uninstallation of the graphics card drivers using Display Driver Uninstaller, then download and reinstall the drivers for your graphics card. Usually this will fix the issues that the screen looks black when you turn on the PC, but if not, also check that there are no Windows updates waiting to be installed, especially if you have started to have the problem right after updating windows.