I have tried a number of the recommended 'fixes' to try to get Windows Live Mail to open. I get the error message " windows live mail could not be started... unable to open the Live Mail message store. Your mail box data is being used by another program such as a virus scanner. Close the program or wait for it to complete its operation then open windows live mail again.  (0x800C0155,2).  

However, I have been able to get Windows Live Mail to work by setting up a new user account. This hasn't been much good to me because for some reason I am unable to import my  Sent emails and I do not wish to have to log on as a different user every time I want to check my email!

When will Microsoft make programmes that fix themselves when they go wrong instead of customers having to spend hours of their life fruitlessly searching for answers and having to try to be  computer experts - it's ridiculous!