How to Remove Guest Session in Ubuntu 17.04

This quick tutorial is going to show you how to remove the Guest Session from Ubuntu 17.04 Login screen.

Ubuntu is shipped with a guest session feature that allows visitors log in without providing a password. If you find this feature is useless for you, easily disable the Guest session by following below steps:

1. Open terminal by pressing Ctrl+Alt+T or searching for “Terminal” from the start menu.

2. When the terminal opens, run command to create and edit a lightdm configuration file:

sudo apt install gksu && gksudo gedit /etc/lightdm/lightdm.conf.d/50-no-guest.conf

When the file opens, paste below rules and save it.

[SeatDefaults]
allow-guest=false

That’s it. You won’t see the guest session at next login.