I'm still on the fence about installing the new version of Windows. I currently have Windows 7 Premium and Windows Live Mail. Will installing Windows 10 render this email system obsolete?
The Windows 10 specifications contain the following statement:
If you have Windows Live Essentials installed on your system, the OneDrive application is removed and replaced with the inbox version of OneDrive
I take that as implying that the other components of Windows Essentials including Windows Live Mail will continue to work.
Upgrading to Windows 10 from Windows 7 appears to totally knock out Windows Live Mail and all of its settings and stored emails.
Firefox settings and emails are preserved in the upgrade to Windows 10.