Those who are in Windows and trying to make bootable USB drive for the installation of Evolve download the latest ISO(Alpha 3 at this time ) download Rufus from http://rufus.akeo.ie/.
You can try the "dd" command also.
Like in the image browse for the iso and default options checked(Note : UEFI not supported this time) click start..Done !
Image Credit : Rufus
Note : Unetbootin is not working at the moment.