windows 7 asks twice for credentials at logon

Hi all.

I have the below situation.

When i start windows they ask me for user credentials which is quite normal.

But after i enter them correctly they ask me again. If i delay to enter them the 2nd time when i do i enter windows and i see that all startup programs are already loaded.

The only thing i can imagine is that some time ago i followed an article on how to enable concurrent login of users and probably i have not done it right because it is not supposed to ask me twice for my login credentials.
Unfortunately i do not remember which article was.

So my question is, is there a way to bring my windows 7 ultimate in their default settings according users log on?

Thank you for your time reading this.

Regards,
theobserver.

Hi again ,

after no response from here -which was my last hope- i decided to have windows 7 automatically login so i would not have to enter my credentials twice and i followed these instructions to do it:
How To Automatically Logon To Windows 7

I expected that windows will not ask me for credentials at all ,but now they ask me just once.

Does anyone have an idea why this is happening?

Thank you for your time reading this.

Regards,
theobserver.