I have just created a bootable Linux USB and added three accounts: My Account, My brothers account and a Guest account. every time i boot Linux up it used to log me straight into the "mint" default account. I changed it so it would log into mine hoping that a login screen would show up since all the others accounts require a password. But it logs me straight into mine. I would like a logon screen to show up when i boot into Linux but this doesn't occur. I can switch users after it log's me in to another and it shows the logon screen there but not when i first boot it up. Is there is a way for a logon screen to show up after booting into Linux Mint 19 on a bootable USB? Also would there be any way to disable the "mint" account. I am using Linux mint 19 Cinnamon.
On install there is an option when creating your username to autologin or manual login. To change this after install you need to:
menu --> Administration --> Login Window
Click the "Users" at the top, then delete the user that is in the "Username" box under Automatic Login. Close and reboot and you should be presented with a list of users to login with.