This week Microsoft advised users to apply the above patch else Mail would stop working in a few weeks.. I have applied the patch and now Calendar does not work. When I switch to Calendar from Mail the program crashes with the message that "Windows Live Mail Has Stopped Working". It closes down and restarts but the problem persists. I am using an up to date version of Windows 10.

I have re-installed the un-patched Live Mail and it works fine. However, when the patch is applied it fails again. I am wondering whether it is because I share my Gmail calendar.

I could switch to the Mail App which Microsoft is encouraging users to use but it does not have the facility to use alias email addresses - which is a big deficiency.