Macrium Reflect is a powerful disk imaging and backup tool for Windows, developed by Paramount Software (Macrium Software) from United Kingdom in 2006. It generates disk images and file backup archives by utilizing Microsoft Volume Shadow Copy Service, which ensures data accuracy at a specific point in time.

HDClone is a professional hard disk copying/backuping/rescuing tool from Germany. It can thoroughly copy/clone any data (that is, each byte) on a hard disk to another from the physical or logical layer. This means that, in addition to the backup task of data or hard disk, it can also help you finish the migration work of data or system, as well as the data rescue mission.

Ghost (short for General Hardware-Oriented System Transfer) is an excellent backup & restore tool (commonly known as cloning software) for system, data on hard disk/partition developed by the famous Symantec company from America. For the vast majority of advanced users like system administrator/network manager, it is used to backup the system partition (so as to minimize the time and labor spent on each reinstallation of OS furthest) or data on a disk.