You must export and backup your all email messages from the email program you are using, if you want to export and backup Windows Live Mail 2011 emails, you don’t need to use any third party application to backup emails here is an easy way to export and backup messages. You can use this guide to export message from Windows Live Mail 2011 or from previous version Windows Live Mail.
Export Windows Live Mail 2011 Messages
Run Windows Live Mail 2011.
Click on main “Menu” tab > Export email >Email messages.
Select email format “Microsoft Windows Live Mail” and click “Next” button.
Click “Browse” button, Select an empty folder to export messages and hit “Next” button.
You can either export “All folders” or some “Selected folders”, choose one option and hit “Next” button.
This will take some time to export Windows Live Mail Messages and Windows Live Mail Folders depends on the number of messages and folders size.
When messages exported successfully check the folder where you exported the messages, here you will see all folders are exported and organized.