Have you deleted any unsent messages that have been put into your outbox or any in your "drafts" folder?
You could try a "repair" by going into control panel, programs and features, clicking on Windows Live Essentials and clicking on "repair".
This thread is now locked and can not be replied to.
Windows 10 Home vs Windows 10 Pro comparison: Here are the extra features you get in the Pro version
Why Formula-e needs to go faster
How Instagram spots trends
How to use Apple Music in the UK: Complete guide to Apple Music's features