Windows Mail Not Opening Emails Right

I have messages in my inbox. I have the preview pane open. It doesn't show anything when the message is clicked. So I double click the messages and it has the original message as an attachment in the message that opens. So I click the attachment and then it tells me that Windows cannot find such and such file, check spelling and try again. Plus all the emails that I had previously saved as save as in regular file folders as .eml on my computer instead of opening up as a regular email, they open as if the origianl email is an attachment and give me the same message. One thing I really hate about windows stuff is they are always changing the looks of it and how it works and it never works right for long before it messes up like this email stuff.