Well Screen flickering in Windows is usually caused by outdated display drivers. To [link|https://www.systweak.com/advanced-driver-updater|update driver|new_window=true] you'll need to start your PC in safe mode, uninstall your current display adapter, and then check for driver updates. Start your PC in safe mode and also check for any physical damages to hardware, software problems and bugs in specific applications.
And Also check out this video it might be helpful for you: https://www.youtube.com/watch?v=5Vl3EmyZX2s