Old title: Email folders

I was using Windows Live Mail last night when I got an error message that the server had experienced difficulties and had shut down. Immediately in a flash two of my folders that I store emails on disappeared. I have searched every place I can think of, called my provider, and lastly Microsoft. The Charter person searched for them and could not locate them on Charter's servers, but she did find that since I was using WLM, they were stored on a Microsoft server. Called them and their help wanted me to subscribe or pay $99 for a fix. I have owned Microsoft 10 for about 2 months and find that infuriating. I went into control panel and looked into the hidden folders and drives options but that did not help either. Is there somewhere or somehow to retrieve these two folder? Thank you.