sudo apt-get install xubuntu-desktop

sudo add-apt-repository ppa:upubuntu-com/gtk3
sudo apt-get update
sudo apt-get install win2-7
gsettings set org.gnome.desktop.wm.preferences theme 'Win2-7-theme'
gsettings set org.gnome.desktop.wm.preferences button-layout 'menu:minimize,maximize,close'