This bug doesn't only affect the latest version but also a few earlier versions, I'm not sure since when it has been happening exactly but I believe somewhere around the 1.0 update. (I don't use the windows 10 edition that often)

What happens is very simple, the game crashes whilst showing the mojang screen. I start it up, I see the mojang screen, and it closes the window. I've re-installed the game about 50 times, I've updated all the drivers I could so those are not the reason it is crashing.

It is crashing (to my knowledge) because my account name has a 'ë' in it. (if I were to create an account called 'Account' (with just latin characters) I am able to launch and play the game perfectly fine)

I can't give anything else (like screenshots) since it just closes the window, no crash reports, nothing. If there is anything else I could include in this report to help, let me know.

(I have searched for anyone else reporting this issue but I haven't found any recent ones, if this has been fixed internally or is already a known bug, please ignore this report)

HOW TO FIX
I changed my account's name to not have an 'ë' in it, and now after about two weeks (it was still incorrectly cached and it didn't update directly after changing my name) it no longer crashes.