On my Acer Aspire S7 laptop it exits on the Mojang start screen (assuming it crashes). My event log:

https://gist.github.com/anonymous/c3e05207a679e2f0cd40

And here is dxdiag:
https://gist.github.com/anonymous/b2cec396e562606d52da

Windows Monitor log file:
https://onedrive.live.com/redir?resid=6B25FD8941AB62E!111&authkey=!AOaX5fCjKYrfrRg&ithint=file,PML

Posted this in the minecraftforum.net support section, and were told this:
After a bit of looking into the process monitor log, the cause appears to be a stack buffer overflow that's caused from within the game binary. This is something that should be patched by Mojang, you should report the issue to https://bugs.mojang.com/browse/MCPE with the information you provided here.

So that is wait I did.

Whole thread here:
http://www.minecraftforum.net/forums/support/minecraft-windows-10-edition/2501968-crashes-on-mojang-startup-screen