Short description of Drive Snapshot 1.40: Drive Snapshot creates an exact Disk Image Backup of your system - while windows is running and you continue to work. If desaster strikes, a complete and exact restauration of your system will be possible in only few minutes. The image file can be used as a virtual drive. Restart to DOS is only necessary, if you must restore your system partition. Otherwise there is no need to reboot - not even during installation.