Hi All,
Same problem W10, advice from the Outlook email to install the KB update.
Mine had the same issues as the other's. Uninstalling Win Live Mail and re installing made no improvement.
From reading these post's, for Win 10, I seem to resolved my crashing, and forced close, by going from the Mail page down to the bottom left to the where it has icons for Mail, Calendar, Feeds and selecting Calendar.
Once on the Calendar page, about the middle left under in my case MSN.COM (my email acct type) there are 3 ticked boxes, untick the one for Calendar which synchronizes the Calendar with the email's.
I then restarted the PC and W L Mail & Calendar worked again separately, but no more crash and close of the WLM.
Rob.