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I do not want to see the Guest account on my login screen.
How do I disable it?
A more convenient way to disable the guest login is:
Open System Settings and navigate to User Accounts.
Then select Guest Session and unlock the settings by authenticating with your user password:
You can now easily disable the guest session:
Open up the pantheon-greeter config file:
sudo vim /usr/share/lightdm/lightdm.conf.d/40-pantheon-greeter.conf
Add the following line and save:
Required, but never shown