The easiest way to install GNU Octave on Microsoft Windows is using [http://hg.octave.org/mxe-octave/ MXE] builds. For the current 4.0. release installers can be found at [https://ftp.gnu.org/gnu/octave/windows/ ftp.gnu.org/gnu/octave/windows/]. Unofficial 64 bit binary is available at [http://www.tatsuromatsuoka.com/octave/Eng/Win/ File list of Octave for Windows]
issues specific to windows version 4.0 .1.
#Both cli and gui cannot handle path name of which contains non-ascii characters. (For 3.8, cli can handle non-ascii code if codepage is properly set to the machine locale)