Original title: Windows Live not working

When i try to open Windows Live Mail it comes up with error message that says

Windows Live Mail could not be started. The application was unable to open the Windows Live Mail message store. Your Windows Live Mail mailbox data is currently being used by another program, such as a virus scanner. Close the program or wait for it tot complete its operation, then open Windows Live Mail again. 0x800C0155. 997

Please help.  I have tried repairing, reinstalling Windows Essentials. I've tried uninstalling my AVG but still did not work.

Any suggestions would be appreciated. having to use outlook at present and I can't handle the layout so really would live my Window Live Mail back!!

Leis