KDE is probably the best looking environment around, and it has a very cool widget-based desktop built in to the environment. Its menus are set up very much like Windows, with one main menu located in the bottom left corner of the taskbar from which you launch apps and view settings.
The following lines explain how to install KDE desktop on Ubuntu Linux 14.04 LTS.
$ sudo add-apt-repository ppa:kubuntu-ppa/backports
$ sudo apt-get update
$ sudo apt-get install kubuntu-desktop
Installing Kubuntu Restricted Extras
The Kubuntu Restricted Extras will install Adobe Flash Player, Java Runtime Environment (JRE) (sun-java-jre) with Firefox and Konqueror plug-ins (icedtea), a set of Microsoft Fonts (msttcorefonts), multimedia codecs (w32codecs or w64codecs), mp3-compatible encoding (lame), FFMpeg, extra multimedia codecs for K3b, the package for DVD decoding (libdvdread3), the unrar archiver, odbc, and cabextract. It also installs multiple “stripped” codecs and avutils (libavcodec-unstripped-52 and libavutil-unstripped-49).
$ sudo apt-get install kubuntu-restricted-extras