Home → Mac → Can't delete User → Cannot delete grayed out user and password doesn't work
5.1. Cannot delete grayed out user and password doesn't work
- System Preferences > Login Options > Join… > Open Directory Utility…
- Click to unlock it. (You may need to Enable Root User in Edit menu.)
- Go to Directory Editor. Search to find the user you can’t delete — the original user that was logged in when upgrading to High Sierra.
- Find the GeneratedUID field on the right and copy it somewhere safe.
- Change one digit in it and Save.
- Find your new/main user account > GeneratedUID, paste in the one copied above. Save.
- Run `diskutil apfs updatePreboot disk1s1` in Terminal. (disk name in place of disk1s1)
- Login as your main user. You should be able to delete the original user now.
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