When I load the launcher, it opens but the interface doesn't show up. It works, as when I move my mouse on some parts of the screen it changes as when you can click to enter text (the parts to enter the email and password), but I cannot see anything, it's invisible. I've tried uninstalling and reinstalling multiple times without results.
When I try to make the launcher full screen (I entered my credentials without seeing the interface) it results in a black screen.

I solved it! By running the compatibility troubleshooter, I chose to set the compatibility to what my OS suggested (so I chose the automatic option, the first, not the manual) and it changed it to Windows 8 compatibility and now it works as intended.

Glad you solved it! And the solution you found can help those people, might including me, who encounter the same problem in the fulture.