Two months ago, Microsoft announced that Ubuntu, Fedora, and Suse would be available from the Windows Store. Just a few days ago Ubuntu was the first to become available. Instead of a dualboot, Ubuntu runs sanboxed parallel to Windows 10. Currently this feature is only available to Windows 10 Insiders, but will be made public in September or October of 2017.
I have not decided if I find this to be a 'good' or 'bad' thing at this point. For now, it is 'interesting.'
More details can be read at
https://thehackernews.com/2017/07/windows-10-ubuntu-linux.html
https://blogs.msdn.microsoft.com/commandline/2017/07/10/ubuntu-now-available-from-the-windows-store/