If you are upgrading from Windows Live 2010 to Windows Live 2011, your mail service hang in most of the times. The main reason of this is one update of Windows. You have to uninstall that update named KB2454826 from Windows 7.
For uninstalling follow the steps..
Start>All Programs>Windows Update. A window opens with update options in the right(main) panel. In the side bar on the left click the link to "Update History". At the top of this page click "Installed Updates". Select the update then at the top of
the table, click "Uninstall"..
Sure.. It will work..!
Sujas Ali
Aabasoft | Infopark | Kochi | India