I have installed Dynamic AX 2012 and I have checked AOS.
After steps of configuration Dynamics AX I restart it and when I want to go to the legal company CEU or other I cannot!
I have just a windows called DAT.
Only DAT found in dynamics ax 2012!
How can I get access to CEU and find AOT?
As I understand you, you have access to the DAT company only and with no rights?
This will give no or few menu items.
The most likely course: you changed roles or security groups of your user. Try with another user with Admin power if possible.
Update: If it fails you will have to restore a backup copy of your database. First make an SQL log backup, then do a point-in-time restore to a time before your configuration setup.