If you have KB3093594 installed and your web email is still on Outlook.com (not Outlook Mail), I suggest the following (which worked for me and some others).
1. Move all of the emails in your Inbox, Sent and Saved, etc., folders to temporary folders in Storage folders.
2. Uninstall Windows Essentials.
3. Restart your system.
4. Download and install Windows Essentials that includes WLM 2012. DO NOT INSTALL THE PATCH IN KB3093594!
5. If all of your emails don't show in your Inbox, Sent and Saved folders after they sync with the web-based mail, move them from the temporary folders in Storage Folders to their appropriate original folders. They should sync properly the next time the system syncs.
Taking this action puts faith in the fact that Microsoft will fix KB3093594 before moving you to Outlook Mail.
Good Luck!
