Make A Bootable Windows 10 USB Install Stick On Linux With WinUSB Fork ~ Web Upd8 : Ubuntu / Linux blog
▻http://www.webupd8.org/2016/06/make-bootable-windows-10-usb-install.html
WinUSB is a tool that can be used to create a bootable USB Windows installer from an ISO or a DVD, either using a GUI or from the command line.
The application looks pretty much abandoned, with the latest release dating back to 2013 however, GitHub user slacka forked it, fixed most of its bugs, and updated it to support both wxWidgets 2 and 3.