I have the same problem and the same error message reported by Bruce. I am trying to use the Windows Live Mail application running in Windows 10. I have a Windows Live account and I am able to use the Windows Live Mail application as a client that sends and receives emails both from that account and from a gmail account. However, Windows Live Mail does not enable me to get at either my Calendar nor my contacts (stored in the built-in "People" app). I tried the Repair all Windows Essential programs steps suggested above but they had no affect.
I would not be trying to use the Windows Live Mail application if the built-in Windows 10 "Mail" application did not constantly crash on my Windows 10 PC (this seems to have been reported by many other Microsoft users but I have not seen any explanation or solution by anyone from Microsoft yet).