Do not upgrade your system to 13.04, which is very slow.
1. Install gnome-shell
Press CTRL+ALT+T simultaneously to enter terminal.
sudo apt-get install gnome-shell
log out and choose "gnome classical no effects" to log in
Note: To add and remove application launchers in the gnome-panel you need to:
Press Win+Alt and right-click the top menu bar - N.B. Win is the Windows Symbol key
2. uninstall unity and compiz
sudo apt-get remove unity
sudo apt-get remove compiz
3. to replace Ubuntu Software Center with Synptic
uninstall ubuntu software cente
sudo apt-get remove software-center
sudo apt-get autoremove software-center
install synaptic
sudo apt-get install synaptic
Install Gdebi Package Installer for installing deb package manually.
sudo apt-get install gdebi
4. Remove Ubuntu One
‘Ubuntu One’:
sudo apt-get autoremove ubuntuone-client python-ubuntuone-control-panel
5. remove indicator-messages
‘indicator-messages’ :- It’s a small icon on the top bar on your desktop that allows you to access various social apps and their settings (such as Gwibber, Empathy etc).
sudo apt-get autoremove indicator-messages
sudo apt-get autoremove telepathy-indicator
6 remove Deja-dup
‘Deja-dup’: If you don’t use this file backup tool, use the below command to get rid of it.
sudo apt-get autoremove deja-dup
7. Remove Zeitgeist
‘Zeitgeist’: As said above, this is a major component in Ubuntu. If you don’t need it, and because it too has few services that occupy my RAM, use the below command to remove it.
sudo apt-get autoremove zeitgeist-core
8: Replace Totem with Smplayer
sudo apt-get remove totem
sudo apt-get remove rhythmbox
sudo apt-get autoremove
sudo apt-get install smplayer
9. install gconf-cleaner
sudo apt-get install gconf-cleaner
Run gconf-cleaner
gconf-cleaner
10. Clean cashes and un-used dependencies
sudo apt-get autoremove
sudo apt-get autoclean
Other Option: Install bum to remove ‘unnecessary’ system services, manually
sudo apt-get install bum
Then use the below command to launch it.
gksudo bum
