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Today I joined my 6-month training at TCC (Testing and Consultancy Cell), GNDEC, Ludhiana. Today I noticed one of my friend’s laptop was running too slow and he was irritated because of this. He was using Ubuntu with unity as desktop environment. So I asked him the configurations of his laptop and it was 1 GB RAM. And it seemed to me the root cause of the problem.
I searched about light weight desktop environments and found this post:
http://askubuntu.com/questions/413569/whats-the-lightest-ubuntu-desktop-environment
So I advised him to install xfce.
INSTALLING XFCE
For this, there is a command:
sudo apt-get install xubuntu-desktop
After installing, when he restarted then xubuntu spash screen appeared but again unity was started. So the next command is to remove unity and some related packages as given in above link.
sudo apt-get autoremove --purge unity unity-common unity-services unity-lens-\* unity-scope-\* unity-webapps-\* gnome-control-center-unity hud libunity-core-6\* libunity-misc4 libunity-webapps\* appmenu-gtk appmenu-gtk3 appmenu-qt\* overlay-scrollbar\* activity-log-manager-control-center firefox-globalmenu thunderbird-globalmenu libufe-xidgetter0 xul-ext-unity xul-ext-webaccounts webaccounts-extension-common xul-ext-websites-integration gnome-control-center gnome-session
Other options are: LXDE, MATE.