Will not load or even open.

Put the summary of the bug you're having here

What I expected to happen was...:
I figured it would just open no problem. I've already tried uninstalling it and re-installing it but that didn't work either.

What actually happened was...:
I clicked play and it doesn't even open Minecraft but it just says there was a problem and it has crashed.

Steps to Reproduce:
1. I clicked play on the opening window
2. It said there's a problem
3. ...