A black screen at startup means the computer powers on but Windows never shows the sign-in screen or desktop. You may hear fans, see keyboard lights, or notice the power light is on, but the display stays blank.
On Windows 10 and Windows 11, this usually comes from a display connection problem, a graphics driver that failed to load, a startup app conflict, or damaged system files. Work through the checks in order, starting with the simple display fixes.
Check the Screen, Cable, and Display Driver
Many black-screen cases are display problems, not full Windows failures. Start here before entering recovery tools.
- If you use a desktop monitor, make sure the video cable is fully connected at both ends.
- Try a different HDMI, DisplayPort, USB-C, or VGA cable if you have one.
- Try a different port on the monitor or computer.
- If the desktop has a separate graphics card, plug the monitor into the graphics card port, not the motherboard video port.
- Press Windows key + Ctrl + Shift + B. Windows will attempt to restart the graphics driver, and you may hear a beep.
- On a laptop, press the brightness-up key and make sure the display is not dimmed all the way down.
If the screen appears after the display-driver shortcut, update or roll back your graphics driver once Windows loads.
Disconnect Extra Devices and Restart
External devices can interrupt startup, especially docks, external drives, card readers, USB hubs, and secondary displays.
- Hold the power button for about 10 seconds to turn the PC off.
- Unplug non-essential USB devices, external drives, printers, docking stations, and extra monitors.
- Leave only power, keyboard, mouse, and one display connected.
- Turn the computer back on.
- If Windows starts normally, reconnect devices one at a time and restart after each one to identify the device causing the conflict.
Boot Into Safe Mode
If Windows cannot load normally, Safe Mode can start it with basic drivers and minimal startup programs. That helps you remove a bad driver or startup app.
- Turn the PC on. As soon as Windows begins loading, hold the power button to turn it off.
- Repeat that forced interruption two or three times until Automatic Repair appears.
- Choose Advanced options.
- Go to Troubleshoot > Advanced options > Startup Settings.
- Click Restart.
- Press 4 or F4 for Safe Mode.
If Safe Mode works, the display hardware is probably fine. A driver, update, or startup item is more likely responsible.
Roll Back or Reinstall the Graphics Driver
A black screen often starts after a graphics driver update. In Safe Mode, remove or roll back the driver.
- Right-click the Start button and open Device Manager.
- Expand Display adapters.
- Right-click your graphics card and choose Properties.
- Open the Driver tab.
- If Roll Back Driver is available, use it.
- If rollback is not available, choose Uninstall device, restart, and let Windows reinstall a basic driver.
Run Startup Repair
Caution: Startup Repair is designed to be safe, but do not interrupt it while it is scanning or repairing startup files.
- Boot into the recovery screen using the forced startup interruption method above.
- Select Troubleshoot > Advanced options.
- Choose Startup Repair.
- Enter your account password if asked.
- Let Windows finish and restart.
If Startup Repair cannot fix it, return to Advanced options and try System Restore if you have a restore point from before the black screen began.
More Fixes to Try After You Reach Windows
- Turn off Fast Startup: Open Control Panel, go to Power Options, choose what the power buttons do, click Change settings that are currently unavailable, and uncheck Turn on fast startup.
- Undo the recent change: If the black screen began after a Windows update, driver update, or new hardware install, remove or roll back that change first.
- Test another display: Try another monitor, TV, cable, or port. This confirms whether the screen or cable failed instead of Windows.
- Create recovery media: Once the PC works again, make a Windows recovery drive so you have another way to start repair tools next time.
Sources
- Microsoft Support: Fix black or blank screen errors in Windows
- Microsoft Support: Start your PC in safe mode in Windows
- Microsoft Support: Create recovery media