windows live mail log in problems

I am suddenly having log in problems with live mail.  When I open it up it shows my photo and name as logged in.  Then I keep getting "log in request" so I do with my details  but it keeps coming up "incorrect password".  I have changed my password and it comes up as "saved".  I used it to log in and all seems to go ok then I get the log in message again and when I try it comes up "incorrect password" again.   I have tried reinstalling live mail but am getting nowhere and am still not getting any email as it refuses to update.  Any not too complicated answers welcome  Terry