For windows live mail to Outlook migration, you can also trust MailsDaddy EML to PST Converter and export single or multiple EML data files at once. This GUI software has several useful features and conversion options. It helps users to move EML to PST, EMLX, MSG, HTML, & various other mail formats. You can also use the free demo edition and export 20 emails per mailbox for free.
For more info: https://www.mailsdaddy.com/eml-to-pst-converter/windows-live-mail-to-outlook.php