I created a Live Mail account in order to be able to install Windows Live Mail on my PC - necessary because Windows 7 doesn't include Outlook Express. I then was able to add my Orange email account and my gmail account to Live Mail. I then removed my Live Mail account as I didn't need it. So now I had Windows Live Mail set up as I wanted it and I had all my contact addresses set up.
I then made the fatal mistake of signing out of Live Mail..
You can see the button at the far right now says sign in
I can't remember the name of my Live Mail account to be able to do so.. I never used Live Mail to send a message either.
The killer in all of this is that all my contacts have disappeared. Hope I've made myself clear.