Windows 10??? Ruining League?

Well, here's the deal. I got Window's 10 today and everything went smooth, excpet for the fact that League stop working all of a sudden :/. It opens fine, I click Launch and then in the Login Screen there's nothing there. All black, you can even here the music and all but no images. This wasn't happening before though. And yes, I tried reinstalling League. What should I DO! :(