Backing Up Text Messages
Windows Phone 8 makes it possible to back up
your text messages. The interesting point about the way Microsoft
implemented this feature is that there are separate settings for
regular text messages and group text messages. This enables you to back
up only personal messages, without having to back up group texts. Of
course, you can back up group texts, too, if you want. To back up all
your text messages, go to the Backup screen and perform the following
steps:
1. Tap Text Messages.
2. Set the Text Message Backup slide bar to the On position.