Windows System Image Backup
From Free Knowledge Base- The DUCK Project: information for everyone
If the hard drive crashes or becomes corrupt a system image backup can be used to restore all of Windows and data files.
System Image Backup Graphical Tool
System Image Backup Command Line Tool
Wbadmin is the command line tool that does the same thing as the graphical tool. wbadmin 1.0 - Backup command-line tool
The behavior is identical to the System Image backups initiated from the graphical Backup And Restore tool. The first time you initiate a System Image backup, it backs up every block on the system volume. Each subsequent time, it simply updates the previous backup.
example:
Wbadmin start backup -backupTarget:W: -include:C: -quiet