Have you tried a repair of Windows Live Mail?
If not, it's worth a shot to do so.
First, either log off your desktop and then log back on OR restart your computer. That will make sure any instance that is already running will be shut down.
Next go to Control Panel and choose Programs and Features (or whatever add remove is called in Vista).
In the installed programs list look for Windows Essentials, click it and choose Repair. The only option is for repairing all Windows Essentials programs.
Let it repair.
If it works, great.
If not and the issues continue the next time you get the error message, please post it.
If the error contains your email address or email name, xxx out the name portion. You can leave @whatever.com/net/etc.
There are other options but let's see what a repair does (or does not do) before those are mentioned.
Edited by Queen-Evie, 16 May 2015 - 11:56 AM.