After updating to El Capitan 10.11.1 the login screen shows my default user and the Guest account. The Guest user is disabled though.
What is wrong here? I really don't want anyone other then me to login to this computer.
Click on the padlock icon to unlock it (enter password if required)
Select the Gastbenutzer (Guest User) in the left hand pane
Untick "Allow guests to log in to this computer"
Click on the padlock to lock it