I noticed this after receiving a Microsoft email telling me I must update LiveMail 2012 if I intend to continue using it.  I did that, selected the repair option, and it completed.  Then I noticed a couple things: 1) emails started asking on many new emails if the email was from an approved sender; and 2) my largest folder, actually a sub-folder with many, many emails, just disappeared.  I notice that on my Kindle Fire though, that subfolder still seems to be there.  How do I get it back on my laptop.  The email from Microsoft directing me to update LiveMail was in this disappeared folder, so I can't even refer to it.