You can use the wondrous eSoftTools Windows Live Mail to PST Converter to convert WLM files into PST Outlook in a secure and reliable condition. It is the complete and direct method for all the users to make the WLM data to the Outlook pst conversion including attachments. And it can continue to work with all Windows Operating Systems including Windows 10 and other more versions. The software has a simple and users friendly graphical interface. Users will not find any difficulty during the change of bulk Windows Live Mail files into Outlook pst files. So that is why I would like to recommend using this Windows Live Mail to Outlook Converter.