White screen in minecraft?

Okay, so I signed into minecraft and I launch the game, however, the game doesn't come up. After the Mojang screen, my minecraft just randomly turns white. My minecraft version is completely un-modded and I have not modified the.jar or the.json file in any kind of way. I tried re installing java, re installing java jdk, and I have even updated my graphics card and allocate more ram to minecraft but none of those worked.