Backing up your data is an important step before you remove content from the storage, do a factory reset, or upgrade to a new phone. It is also a way of securing your data against the damage or loss of your phone. There are several options for backing up your data.

• Android Backup Service
  This service works with your Google account to automatically back up app data and settings including Wi‍-Fi passwords and files stored by certain apps.
  
  
• HTC Sync Manager
  This app transfers music, photos, and videos from your phone to your computer. You can also sync locally stored contacts, calendar events, and playlists between your phone and your computer, or save backups of your phone's apps and settings to your computer. See How to use HTC Sync Manager.

• Storage card
  You can use a storage card in your phone to backup these files and settings:
  
  Messages: Back up your text messages to the storage card.
  Contacts: If you have locally stored contacts in the People app, export them to the storage card.
  Files: Manually copy and paste files to your storage card.
  Other data: Check other apps to see if they support exporting data to the phone storage or storage card.
  
  NOTE: See How to get the best performance from your SD card and How to expand storage on your device.