Can't disable admin account

Make sure that a) the original admin user is not logged in (ie, you can't use fast user switching at this stage, you have to log out completely) and b) you're not actually currently logged in as the original user (ie, you can't de-admin yourself, you have to do it from the other admin user).

Matt

Did you unlock the padlock at the bottom left corner of the Accounts window?

Is the short user name of the account "admin", by any chance?

Also try opening Terminal and pasting this:

dscl . -read /groups/admin/ |grep Member

Are both your old and new accounts listed in the results?

"...so that I can make it an admin and...."

And you have given the new account administrator rights?

Since you wrote "can make", it made me wonder if you have not made it into an admin account yet. The original admin cannot be deleted if the new is not admin.

All the best,
Espen

Matt Clifton wrote:
(ie, you can't de-admin yourself, you have to do it from the other admin user).

Yes you can. If there are two admin accounts, you can disable yourself as an admin while logged in. OS X will ask you to log out after you make the change.

Try entering this in Terminal while logged in to your new admin account:

sudo dscl . delete /Groups/admin GroupMembership happyaid (where "happyaid" is your original account's short user name)

That should remove your original account from the admin group.

happyaid wrote:
Yes it is. Does that make a difference?

Wait a minute - is that the answer to the former or the latter question?

If the former, you can't remove this user from the admin group if the short user name is "admin". You were warned about this when you originally set up this account as an admin account.

You'll have to change the short user name to something else first if you want to make it a non-admin account.

If your answer was to my latter question, see my post of a few minutes ago at the bottom of this thread.

Message was edited by: Király

Have you changed the short user name? One does that by right clicking the account in System Preferences -> Accounts and selecting Advanced Options.

More info on changing your short user name in Leopard is here:

http://www.macworld.com/article/132693/2008/03/changeshortusername.html