Can't use windows live to send e-mails I get message that reads: Error I.D. Ox80048821.

I really would rather use hotmail that's my main mail, but whenever I try to send an attachment it goes to windows live

and the same message that's above appears. I either want to be able to use windows w/o problem or delete it & just use

hotmail. I would appreciate any help I can get with this, because I don't know what to do, with it. Thanks, Jean B. 11/16/12.