I can't get my email to come up since I installed windows10

[Original title: WIndows Live Mail]

After switching back to Windows 7 I can't send any emails.  It tells me the server rejected my email address.? 

Wireless works fine now.

I can not log-I or sign-in to Microsoft using Window 10.  It just not work.

Carl Amiet

I have had to revert back to windows 7 and cannot install Windows mail, I get the message, The programme cant start because AP1-MS-core-libraryloader-1l-2-0 is missing from your computer try reinstalling the programme to fix. I have tried to reinstall Windows essentials but this fails , Where do I find the missing files?. 

My fingers sometimes move faster than my brain and as a result a year or so lost all of my Emails.  I recovered them but do not remember how. 

Gradually my Saved Emails got into a mess and the list of folders or is it files on the left hand side of the panel lost their alphabetical format.  There were a series of digits in some places which when opened showed genuine folder name whilst others were empty.

I started to try to tidy this mess up but could not work out how to get the list in alphabetical order and along the way I pressed the wrong key and lost the lot.  I got an "expert" in to help and they found most of the lost folders but many are still missing.

Is there an application or whatever one calls such things that I can use to recover the lost Emails?  

 
all my incoming emails not showing in windows live inbox but they are showing in my gmail and thunderbird inbox

I downloaded Windows 10, didn't like it, so I recovered Windows 7.

Part of my emails came back.  I am using Windows Live Mail.  There is a folder that says "Recovery Files'.

Sometime when I click on that, I see all the folders and files I had before.  Sometimes there is a message that says that nothing is there.  How can I 'catch' the folders and move them to the current Windows Live Mail?

Wish I had never downloaded Windows 10!

I upgraded to Window 10 while using Windows Live Mail and all seemed to go well until I activated the Mail App. Now WML wants me to sign in then tells me I don't have an Internet connection which, of course, I do. How do I get WML to understand I am connected?

Had my computer worked on and somehow my windows live  mail account was gone when I got my computer back.  Is there a way to get my emails from the server back in  my inbox?

Lois

I have two Hotmail accounts. After upgrading to Windows 10, I get the message when I try to sync one of the accounts.  The other Hotmail account works fine.

   Unable to send or receive messages for (my account name)

   Server Error: 0x800488A6"

I have seen this problem reported in several places, but haven't found a solution that works.  Can you help?