The essence of the backup operating system is the partition in which the operating system is backed up, which backs up the file system used by the partition and all the files on the partition: When recovered, overwrites the entire partition with the backed-up file. After installing the operating system, it is a good idea to make a backup so that it is easy to recover if there is a problem.
Introduction to Ghost Software
Ghost is a backup and restore data tool software, it can partition the hard disk, or the entire hard disk into image files back down, when needed to return. One of the advantages of using ghost Backup files is that you can back up or restore a 5GB file partition in about 10 minutes, and the advantage of this is that a very high compression ratio can be used to make a partition of 5GB files into a 1.5GB image file.
Ghost also has the hard disk to copy, the partition to copy and so on function, can quickly the hard disk (or partition) on the data on the other hard disk (or partition). Of course, for most users, the most useful feature of Ghost is to create a partition image file and recover the operating system.