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Question: Cannot Unlock Authenticating Icon after changing the User name

i changed the user name under system reference. After that I cannot unlock the Authenticating Icon even though i put the right new user name and old password. Please kindly suggest the solution. thanks

MacBook Pro (13-inch, 2017, 4 TBT3), iOS 11.1

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Nov 17, 2017 8:37 AM in response to kaungkha In response to kaungkha

Changing the user name for an active User is difficult to get right the first time, and nearly impossible to make right if it gets messed up.


This is the suggestion in any case: You should create a NEW User, log in with that instead, and copy your files over to the New User account. if no issues after a week, delete the old one and its files.

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Nov 13, 2017 4:01 PM in response to kaungkha In response to kaungkha

Good afternoon kaungkha,

Welcome to the Apple Support Communities!

I understand you changed the name of your user account on your MacBook Pro, but are now unable to unlock your account.
Is this when you are logging into the computer, or when performing an action that requires your admin name and password?
Have you tried restarting your computer? Signing in with the old user account name and password?
Take a look at the resources below for changing the name of your user account. There is a link at the end of the article to get help if these steps don't resolve the issue.
Change the name of your macOS user account and home folder
Take care.

Nov 13, 2017 4:01 PM

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Nov 17, 2017 6:49 AM in response to kaungkha In response to kaungkha

hi rina,


here is my problem again.

user and group/click the lock to make changes/system preference is trying to unlock users and group preferences.


until i change the new user name, this box show my user name and i just need to type a password.


but after i change the new user name, this box no more show user name.


i have tried all the user name and password and all are not working.


thanks.

Nov 17, 2017 6:49 AM

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Question marked as Helpful

Nov 17, 2017 8:37 AM in response to kaungkha In response to kaungkha

Changing the user name for an active User is difficult to get right the first time, and nearly impossible to make right if it gets messed up.


This is the suggestion in any case: You should create a NEW User, log in with that instead, and copy your files over to the New User account. if no issues after a week, delete the old one and its files.

Nov 17, 2017 8:37 AM

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Nov 17, 2017 8:39 AM in response to Grant Bennet-Alder In response to Grant Bennet-Alder

hi grant,


i was reminded this message before i change the user name.

but it was too late now and i cannot authenticate both account.

so i cannot create new account too.

the only way to do is to authenticate with right user name and password.

do you have better solution?


thanks.

Nov 17, 2017 8:39 AM

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Question: Cannot Unlock Authenticating Icon after changing the User name