Screen is completely white when joining a game.

For context, it's an old computer that was recently updated to Windows 10. So I'm not sure if that has anything to do with it.

Anyhow, every time I join a game, my screen is just white. It joins me into the game, but the game doesn't load and it's just a white screen. I have gotten it to work ONCE but then it just went back to doing the white-screen again.

I've tried everything that I could think of, like updating and installing new graphics cards, tweaking with the properties of the ROBLOX app to try and get it to work, as well as going into the graphics settings of the computer to change those, but everything I do just produces no results in fixing the problem. Is there anything I can do to actually fix it?

I would appreciate some advice, thank you.