You went to System Preferences on your Mac because you wanted to edit Automatic login setting. Perhaps you want your Mac to automatically log in and load your own dock and wallpaper on startup with no stops in between. The problem is that when you try to do that, the options for Automatic login completely blurred out.
Mac Workspace, via Shutterstock.
For whatever reason, enabling automatic sign-in on a Mac is a bit complicated depending on some other settings. Fortunately, there are workarounds to fix this problem to Automatic login settings are no longer greyed out.
iCloud problem
It seems that the more common problem preventing automatic sign-in on a Mac is your iCloud password, which is increasingly playing a larger role in security on OS X and iOS devices. If you’re running the latest version of OS X, you have the ability to sign in to your computer with an iCloud password, rather than a standard user password stored locally on your Mac.
Apple doesn’t allow automatic sign-in if you choose to sign in with an iCloud password. It’s not clear why, but there’s an easy workaround, which is to switch to a local login password even if it’s the same as your iCloud password.
To do this, go to your System Preferences and choose Users & Groups. Before continuing, click the lock in the bottom left and enter your admin password to edit this section. If you click Login option in the sidebar, you should verify that not only Automatic login set to Turn off but it’s also completely grayed out.
Next, click on the user that you want to log in automatically. Click Change Password… Your Mac will notify you that you are using an iCloud password, so if you change it as it is, it will change across iCloud services. Turn off this feature by selecting Use your own password… instead of.
Fill out the form to use a unique password to log in. This will be the new login password for your Mac, while your iCloud password remains intact.
Tip: Your private sign-in password is probably the exact same password you’re using with iCloud or continue to use with iCloud. Just enter the same password and save it. It will still be saved locally and technically separate from iCloud, but it’s one less password for you to remember.
Return Login option once you have saved your new password. If Automatic login no more grayed out, you’re done! Click the drop-down menu to select a user. If the option is still grayed out, read on for other possible solutions.
FileVault problem
FireVault is a method built right into OS X to encrypt all the data on your Mac. It works by requiring a separate password from your login information, so if your Mac is lost or stolen, accessing the encrypted data will be especially difficult for attackers. thief if don’t know all the passwords.
Chances are if you’re still unable to sign in after turning off iCloud sign-in on your Mac, it’s because you’ve enabled FireVault. Apple does not allow automatic login when this encryption is enabled. If you prefer this extra layer of security over the ability to automatically sign in, you should probably leave it as is.
Otherwise, disabling FireVault is required to enable automatic login. Go System Preferences and click Security & Privacy. Select Fire protection and prevention at the top, then select Turn off FireVault… Finally, click Turn off encryption. If FireVault is currently encrypting data, you won’t be able to turn it off until the process is finished.
If you come back Users & Groups System Preferences and select Login option again, you will find that Automatic login is now enabled. Select a user from the drop-down menu and enter a password to finish.
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Source: thpttranhungdao.edu.vn/en/
