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Jim LaceyFlag for United States of America

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Serious macOS mojave login failure - cannot reset login password.

Serious macOS mojave login failure - cannot reset login password.

Recent installation of macOS mojave now returns password error  when using current login credentials.

Attempts to ‘Reset Password’ fail as entered ‘random’ characters not accepted by “If you forgot your…reset using Apple ID.

i.e. I cannot reset password since no password accepted to access …reset your account password…

mojave accepts my Apple ID login,  but cannot go further as no passwords accepted for Reset
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David Favor
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I am embarrassed to admit that the issue was lack of office communications.

The project was to create new passwords for office Macs (Now Mojave). Folks were given a list of new passwords (one for each Mac) and asked to update the Macs. Turns out the project was not completed and I was able to login using previous password.

Thanks to you I have a 'locked-out' procedure for future use.
Command s is the older way.  You have to remember the command syntax to remount the drive in write mode.

You should boot into recovery mode with command r; it's a friendlier GUI for the non-tech.
Select Utilities --> Terminal
In the Terminial, type resetpassword to open a password reset window.
Select the account
Enter the new password twice and save it.

You will have to reset the keychain password or delete the old keychain and start a new one.
Here's a link to some picture instructions:  The newer way has been around since at least mountain lion (~2011)