Security dialog box when setting up Outlook 2010

So I have been trying to setup an exchange server account for Outlook 2010 and have tried creating new profiles with various settings but the issue I am running into is a security dialog box that pops up when I am creating a new account. My server and everything are correct and the box is Windows Security, Mail Application and asks for my password for my computer. I am the Admin and I type in the password but the box just continually pops up like I am inserting the wrong password. I have tried my computer's password and the password for my email account on my school's Microsoft Exchange Server. Nothing works. The first time the box pops up it has the username for my email the second and all times after that it has my computer's name in it. Can I turn off this security setting? I attached a picture of the dialog box

Windows Security popping up..

Hi,

I am having exactly the same problem. I also tried using different passwords (of computer, email account etc) but worthless ..

Please help us out !