I have Windows Live Mail as my desktop email client.   However, shortly after all the November 2015 and subsequent updates had been automatically installed on my PC, something rather strange has come to light.

As regards my Microsoft email account, messages that I send out are received by recipients - as evident from confirmation received from recipients.  Yet the very same messages not only remain in my Outbox but also appear in my Sent Folder.  And when I view the message list in my Sent Folder, I note that in the To field, the recipient’s name or email is not reflected but my email address!

And, as regards my POP email account, it is the same.  However, sent messages, although delivered to recipients, comes back in my INBOX with my email address (in parenthesis) reflected in the From field.  And when I try to open the message, it says : A Problem occurred while trying to open this message. 

How strange but can anyone figure out why this is so?  I have even done a Windows Live Mail Repair but it’s made no difference whatsoever. 

If I uninstall Windows Essentials completely and then re-install, would all my messages in the respective folders also be deleted?