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Recently my Ubuntu 16.04 starts to boot each time without asking me to log in. I would like to enforce entering password before starting every session, how to do this?

Edit: In the System settings -> User Accounts there is no way to (un)set auto-login: enter image description here

Edit2: I apparently do not belong to user group nopasswdlogin. I checked it typing groups into console, the result is: adm cdrom sudo dip plugdev lpadmin sambashare docker

Edit3: It seems that the problem doesn't occur any more. Maybe some system updates fixed it?

1 Answers1

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Open System parameter

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Go to Security and confidentiality -> Password option

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And you just have to switch off the button Automatic password (don't forget to unlock the option with the button on the top)

enter image description here

damadam
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