User from Admin to Standard

[OwenMeasures]

Wanted to see if anyone can shed some light on this, after updating to High Sierra, my 1 and only Admin user has been changed to a standard user, I now cannot unlock and preferences to try and change this back or create a new user.

It is asking for admin details to unlock but there isn’t and has never been another user on my early 2013 rMBP

Thanks in advance!

 

[dianeoforegon]

Boot into Recovery Drive.
https://support.apple.com/en-au/HT201314

Under Utilities in the Menu bar, select Terminal.
Type (without the quotes) "resetpassword" and hit Return
This will bring up a window where you can reset the password for your User.
Select your User.
Enter new password
Reenter password
Save
Restart under the Apple in the Menu bar

I suggest adding a second admin to make it easier in the future to give admin status back to your User. In addition, it's a good for testing issues.

 

[KALLT]

You can also boot to single-user mode and add your user account to the admin group with this command:

dscl . -append /Groups/admin GroupMembership myusername

Then type ‘reboot’.

 

[OwenMeasures]

You can also boot to single-user mode and add your user account to the admin group with this command:

dscl . -append /Groups/admin GroupMembership myusername

Then type ‘reboot’.

Will try this let you know how I get on.

 

[OwenMeasures]

Boot into Recovery Drive.
https://support.apple.com/en-au/HT201314

Under Utilities in the Menu bar, select Terminal.
Type (without the quotes) "resetpassword" and hit Return
This will bring up a window where you can reset the password for your User.
Select your User.
Enter new password
Reenter password
Save
Restart under the Apple in the Menu bar

I suggest adding a second admin to make it easier in the future to give admin status back to your User. In addition, it's a good for testing issues.

I tried this but it only allow me to change my password (which I did) nothing changed apart from my password.