Why do my storage folders change all my stored emails to just one email?

Say I have a storage folder marked Dad, where I store all the emails my father has sent me.  Later I go there to pull up an old email where he sent me an attached picture.  Every email I stored there in this folder is the same.  All the other information is gone.  All my storage folders are the same.  They have many stored folders, but they are all the same within the folder?  How do I fix this?   No Error messages.  Windows 7 64 bit.  Explorer - Windows Live Mail. Yes it worked prior.  Fairly new computer I built and the only changes made were the Windows Updates that Microsoft sent me.