Screen flickering in Windows 10 is usually caused by display drivers. To update your display driver, you'll need to start your PC in safe mode, uninstall your current display adapter, and then check for driver updates.
Expand the Display adapters section, right-click the listed adapter, then select Uninstall device. Select the Delete the driver software for this device check box, then select Uninstall and restart your PC.
After your PC restarts, press the Windows logo key + I on your keyboard to open Settings. If that doesn't work, select the Start button and then select Settings .
From Settings, select Update & security > Windows Update > Check for updates.