Windows Vista introduces a new technology for creating a complete system image backup of all PC content, including files, programs, and settings. Unlike the related file-based File Backup Wizard, this new capability, known as CompletePC Backup, is a block-level imaging tool which complements the file-based imaging.  It is meant for total restore scenarios, not one-off file restorations.  Image-based backup and restore is generally faster than file-based backup processes and is especially useful when you are backing up or restoring an entire system. However, image-based backup does not provide the ability to recover specific files, as the file-based tool does. Instead, image-based backup restores the entire system. So the file-based backup and a complete system backup work together to provide you with multiple layers of protection.