You are logging in to DBConfig for the first time and have to enter a new password. However, the following error appears:
You have logged in to Windows under a user, who does not possess administration rights. This means that this user does not have permission to write into the registry of Windows OS. That is why the new password cannot be saved.
You should try to log in to Windows under Administrator, start DBConfig and enter the password. After that, you will be able to continue working with DBConfig under the previous user.