windows + R → cmd → Enter
@powershell -NoProfile -ExecutionPolicy unrestricted -Command "iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1'))" && SET PATH=%PATH%;%systemdrive%\chocolatey\bincinst BoxstarterBoxstarterShellSTART http://boxstarter.org/package/nr/url?https://raw.githubusercontent.com/dkimura/boxstarter/master/Boxstarter.ps1