Window and Internet problem!

Can anyone please help me?? I have a window that always opens up whenever I start up my computer and I would like to know if there are any ways that I can make it stop. If anyone knows how can you please tell me?? And my other problem is with the Internet, it always connects automatically whenever it feels like it and it really bugs me because I always have to cancel it. Does anyone know how I can change the Settings to make the Internet stop connecting automatically for me? Please, I really need your help!

-Andrea

 

What window is it that opens during startup?

 

Concerning your automatic dial-up connection, you could try to configure a setting in Internet options in Internet Explorer. Click on the Connections tab and in about the middle of the window the "Always dial my default connection" is probably selected. Instead select "Never dial a connection ". Click OK afterwards.