Windows automatically downloaded updates to my computer when I opened it this morning. Later when I opened my e-mail, it looked different and didn't operate the same as in the past. I got a message at the top of my mail that said that I was only able to view "basic" e-mail and that I needed to update my browser. So, I clicked on update assuming it would be the same and it was Firefox that I downloaded. When I tried to sign in as prompted, it said that my user name was incorrect and now I can't access my e-mail at all. I do not want to change my e-mail--I want it back like it was before the Windows downloaded updates. How can I do this? I am not that savvy on computer technology! Please advise!