Preventing unneeded or unwanted services from loading at startup can improve system performance. This simple tutorial will show you how to manage your Ubuntu system’s services on boot.

First, hit Ctrl+Alt+T to launch a terminal window for running commands. Install bum via this command (just copy and paste command in terminal and hit enter, you need to input user password):

sudo apt-get install bum

Then launch bum (bootup-manager) from the dash home.

Tick on Advanced for more options. It’s easy to disable/enable services as you see in picture.

NOTE: Be sure you know what exactly you’re doing before this, it may break your system.

In addition, if you’re running on Ubuntu server, rcconf is an alternative. Install it via:

sudo apt-get install rcconf

and run with:

rcconf