Guest account always showing up at login screen

Hi, El Capitan installation went flawlessly unfortunately at reboot I saw there was the Guest account present at login screen. I want to System Preferences -> Users&Groups and disabled the Guest account. At restart it was still there, I zapped the Pram but nothing, still there....


Any idea?

MacBook Pro with Retina display, OS X El Capitan (10.11)

Posted on Oct 1, 2015 9:11 AM

Reply
12 replies

Aug 16, 2017 10:09 PM in response to gillux

In users and groups uncheck all the boxes as shown .

User uploaded file

And in login options keep Automatic login as off .

User uploaded file

Guest don't need a password , they can only browse and have less privileges as compared to an admin account .

read this articles macOS Sierra: Guest user pane of System Preferences

OS X: Deleted user account reappears; or, cannot use automatic login for a certain user account - Apple Support

Oct 5, 2015 2:29 AM in response to gillux

I have exactly the same issue on my MBP, but not on our Mac Mini???


Been into user accounts, de selected enable guest user accounts, padlocked changes, still appears in log in window.


Thankfully it's more of an annoyance rather than a system affecting issue but I'd like to resolve it. Read of it happening on Yosemite with other users and even fresh installs of the OS haven't improved the situation so I'm not going to bother taking that route as on the MBP I have Parallels running Windows 10 / Office 2013 so I can't be bothered to go through that misery for such a small gain.


Watching with interest to see if anyone comes up with a fix.

Oct 5, 2015 4:56 PM in response to gillux

I have this same problem. I've tried everything to disable the account but OS X makes it reappear each time I reboot.

System Preferences indicates that the guest user is off, as shown in this screenshot.

User uploaded file

However, I am able to log into the guest user each time I attempt rebooting despite the fact that I have turned it off. How could Apple allow such major security hole?

Oct 23, 2015 4:54 AM in response to gillux

I have found a fix for this. OSX 10.11.1 installed fine without this Guest login annoyance on two of our machines, but the other two it appeared despite trying all the steps others have mentioned above.


The fix that worked for me is as follows:


  1. Turn off Guest access in the Users & Groups as others have mentioned above
  2. Disable Find my Mac in iCloud
  3. Turn off fileVault that will cause a decryption process.....and wait......
  4. Once decrypted, check that all setting remain unchanged above (Guest off, Find My Mac off)
  5. Restart machine
  6. Once restarted, there will be no Guest at login...but we're not done yet as your Mac is not protected, so continue to follow below
  7. in iCloud, check the Find My Mac box
  8. in Users & Groups, uncheck the Guest login boxes (make sure to uncheck all)...and ensure you lock this preference on bottom left
  9. turn on FireVault and wait for the encryption process (which requires a prompted restart)
  10. When encryption is complete, restart your machine and Guest at start-up is gone.....


That's it!


DR

Apr 4, 2016 4:31 PM in response to Remo-DR

Thanks for the steps, but unfortunately, this solution didn't work for me. The moment I turned FileVault back on, the Guest account reappeared.


Here's what I'm observing:


  1. When FileVault is on:
    1. I always see the Guest account on the pre-boot login screen regardless of the Find My Mac setting or if the Guest account is enabled/disabled. Even if I sign out of iCloud, I still see the Guest account on the pre-boot login screen (i.e. the login screen when my MacBook first boots).
    2. After logging out out of a non-Guest account (without restart) AND if the Guest account is disabled, the Guest account will not show on the login screen.
  2. When FileVault is off:

    The Guest account only shows on the login screen if it is enabled (as expected).


So, it seems like to me that when FileVault is on, the pre-boot login screen ALWAYS enables the Guest account regardless if you have the Guest account enabled/disabled in Users & Groups pane. The Find My Mac setting has no consequence on my machine. I just wished Apple documented the expected behaviour better as I find it strange that I have to make Safari available to everyone if I want my drive encrypted. Weird.


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OS X El Capitan (Version 10.11.4)

MacBook Pro (Retina, 13-inch, Early 2015)

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Guest account always showing up at login screen

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