![]() The video card will then re-establish the connection with the monitor so give it a few moments to work. This shortcut will notify the system of a potential issue and force the system to restart the responsible video driver. It could because of a video card or graphics card error. Press Windows key+Ctrl+Shift+B to restart the video driver and check if that helps resolve the black screen before login error. Find Windows Explorer, right-click on it, and select restart option. I also recommend restarting the explorer.exe process once. Repeat the same steps but select Stop option this time. Ideally, you shouldn’t find it but if you do, right-click on it to select End task.Īlso, check the Services tab and check if RunOnce is running there. End RunOnceĬheck if RunOnce process is running in the Task Manager under the Processes tab. Check running processes in the Task Manager or try a clean boot to narrow down possible apps. If yes, then one of the recently installed apps is the culprit running in the background. Try that and witness if that helps you get to the desktop. What it does is bring up a hidden menu where you will find four options. This keyboard shortcut has worked for some people. Move your mouse or press a key on the keyboard to wake your computer as it might have gone to sleep while you were troubleshooting. ![]() Try a different port if you have multiple video outputs. They may have some common troubleshooting steps for you to try. You can also check manufacturer’s website for more details. Wiggle the monitor’s wire gently to ensure they are in place and the power button is on. Most probably, there is something wrong with your display. I know, but if you haven’t already, check the wires. I would also recommend updating display adapter drivers at this point. Possible solutions would include updating/reinstalling drivers. ![]() Reconnect each accessory one at a time to find out which one was causing the error. If everything is working as expected, one of the accessories is the culprit. Wait a few moments and then power on again. Not sure how to reboot without the Start menu? Press and hold the power button until the computer shuts down. Remove all accessories like mouse, keyboard, and flash drive.
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