When you sign in with your Microsoft account
on your Windows Phone 8, you can turn on the service that lets you automatically save things to the cloud
(SkyDrive) so you'll have a backup if something happens to your phone.
You can automatically save your SMS and MMS text messages to the cloud. That way, the next time you get a new Windows Phone, you can restore them all when you set up the phone.
This tutorial will show you how to turn on or off to have the text messages
on your Windows Phone 8
automatically backed up to SkyDrive
(cloud) to be able to restore later if needed.