how can i adjust the flash player so it will stop having a green screen. I have n HP Pavilion 23 all in one. it has windows 8.1, windows isues have been addressed by MSN techs, reloaded operating system, reworked windows on computer but i still get

Please work through the video troubleshooting guide.  In particular, see the part about disabling hardware acceleration.

https://helpx.adobe.com/flash-player/kb/video-playback-issues.html

If you're still stuck, please follow the directions in the guide on providing the dxdiag report and additional information about what you tested and saw.