Windows 10

Started today 11/20/2015 whenever I access Windows Live Mail (2012)  I get an error message 'There was an error when attempting to connect to the Windows Live Calendar service, check to see if there's an upgrade of Windows Live Mail available or contact a service representative.  I saw a reply for this problem dated 12/2014 but it did not address this problem in Win 10.  Please advise.  The PC was a Win 8.1 before the upgrade. 

Thank you!