Following an upgrade to Windows 10, you may be unfortunate enough to find that your computer appears to get stuck on a black screen. This black screen issue after Windows update can be the result of a number of things. Here are some workable solutions that will help resolve the issue.

Solution 1 – Unplug external devices

Sometimes external devices can cause problems and one of the external devices might be the reason for the black screen in your Windows 10 system. Try unplugging all external devices connected to your system and connect them again one at a time. This way you will be able to identify which external device, if any, is causing the problem.

Connect all external devices except the problematic external device and restart your system. Contact the device manufacturer of the problematic device detailing the issue.

Solution 2- Stop RunOnce processes

1. Right-click the Start button
2. Select Task Manager
3. Check the Processes tab and look for any instance of RunOnce.exe or RunOnce32.exe. If you find any such processes running, select the item and click End Task
4. Check the Services tab and look for any instance of RunOnce.exe or RunOnce32.exe. if you find any such processes running, right-click the item and select Stop

If the above given solution did not work for you, you need to boot into Safe mode and perform the troubleshooting steps given below.

Solution 3 – Boot into Safe mode

If you can boot into Windows, it is relatively easy to go into Safe mode.

1. Click the Start button
2. Click on Settings
3. In the Settings dialog box, click on the Update & Security tab
4. In the resulting window, click on Recovery
5. In the Advanced Startup option, click on Restart now

The resulting action will take you into boot mode where you get few options

6. Choose Troubleshoot
7. In the next window, choose Advanced options
8. Select Start-up Settings
9. Click on Restart

You are provided with different options. Here we will select option 5 that is Safe Mode with Networking

10. Press F5 and the computer will boot into Safe mode

Once your PC is in Safe Mode, you need to install the Display Driver again. Here are the steps you need to follow.

1. In the search box of the Task bar, type Device Manager
2. Select Device Manager
3. Expand Display Adapter
4. Right-click on the display adapter and select Uninstall
5. Click OK
6. Restart your PC

Windows 10 will now install the Display Drivers again and this should resolve the Black screen issue.