First let me state that I have just upgraded my machine from Windows 7 using Windows Live Mail (WLM) to Windows 10, 48 hours ago and confess that 24 hours ago I tried to configure and use the new Windows 10 Mail app.  And I have come to the conclusion that I am not yet ready for Windows 10 Mail.

I had an impossible time figuring out (don't think I ever got there) how to configure the new Windows 10 Mail app -- and I accidently DID get it to work, but don't remember exactly what I did.  Anyway, I ended up with about 700+ emails in the Windows 10 Mail Inbox.  [I later found out that there was also 700+ emails in the Inbox on my server (POP3 server, configured to hold mail for 15 days before deleting it].

Since I haven't figured out the new folder business in Windows 10 Mail and since none of my WLM folders were moved/migrated to Windows 10 Mail and since they were also not assessable from Windows 10 Mail -- I finally decided to go back to WLM until I get everything figured out -- and Deleted all of the mail Accounts in Windows 10 Mail.

Well, surprise, surprise, when I went back to my Windows Live Mail, almost the entire days worth of emails for 12/23/15 were missing -- I am guessing because they got downloaded to the Windows 10 Mail app.  But, as mentioned above, I discovered the 30-50 email messages I received on 12/23 were still in the InBox on my POP3 server - but WLM will not read them into my system.

So my immediate question is:

1)  Is there a way to get WLM to read all of the emails still on the POP3 server sent to me on 12/23/15 -- I guess during the period that I was messing around with Windows 10 Mail.

2)  Can you give me some tips (or even Links I can read) that explains what is going on between these two mail programs.

 - is Windows 10 Mail intended to replace WLM

 - can both be run simultaneously

 - is there ay communications between the two

 - can WLM folders be migrated to Windows 10 Mail or accessed by Windows 10 Mail

 - is the Windows 10 Mail sort of like the Edge browser -- supposed to be small and quick with MUCH LLESS FEATURES

Anyway, I need some help.  I know there is a lot of information on these new products out there and honestly I have read a lot of it, but I just haven't found documentation down to the detailed level I am looking for -- but am willing to read more if I can just locate the information -- but right now, I am still kind-of lost.

[And P.S. one last thing -- at 2 am last night I panicked because I could not get WLM to read any mail from the POP3 server, even though I had DELETED all of the mail Accounts in Windows 10 Mail several hours earlier.  But, this morning, WLM looked to be back to the WLM that I now and love.  I have no idea what was going on there.]

Hope you can help me understand what is going on.  Thanks.     ron in round rock