Initial Setup - Backup Assistant℠ Plus - HTC One® (M8) for Windows®
Backup Assistant Plus is a feature that creates and saves a copy of the device's contacts to a secure, password-protected website. If the device is lost, stolen, or damaged, Backup Assistant Plus can restore the contacts to a new device through the wireless network. Backup Assistant Plus is included with Verizon Wireless service. There are no subscription fees for the Backup Assistant Plus service.
From the Start screen, swipe left to display the Apps list. Alternatively, tap All apps (located in the lower-right; may require scrolling to the bottom of the Start screen).