Window live corrupted storage folders

I have had continued issued with Windows Live emails becoming corrupted after moving them out of inboxes and into storage folders.  Some messages in the storage folders open contents of an email that may or may not even be in that folder at all.  Other messages display the following:

The contents of this message cannot be found."

I have trudged through forum after forum looking for a solution that is clearly not unique to me.  I have not found one suggestion or fix.  This is a HUGE issue!  I have lost valuable information that I needed to have saved, some of it going back several years.  Why hasn't Windows addressed this issue for it's community?