Symantec ghost image file
A GHO file is a clone (copy) of the entire contents of a hard disk to another computer's hard disk or to storage media, including the disk header information that is lost in a standard copy and paste. In the process, Ghost automatically formats and partitions the target disk.
See also: ghost imaging
Learn more about GHO files:
Download a demonstration copy of Norton Ghost from Symantec.
Get answers about ghost at IT Knowledge Exchange.