Kaspersky Rescue Disk 10 can be directly booted from the hard disk without any secondary media.This is done by making an partition in the hard disk to appear as a USB drive to the Kaspersky Rescue Disk.
Kaspersky Rescue Disk 10 Bootable USB Creator prepares your USB Drive to boot Kaspersky Rescue Disk 10.This is a simple batch file which automates the steps given under the section Writing Kaspersky Rescue Disk to a removable drive in the help.chm file located in rescue\help\English folder in the Kaspersky Rescue disk 10.
Kaspersky Rescue Disk is like an on-demand virus scanner that allows you to scan and remove virus without booting in Windows. When Windows is running, virus are active and sometimes it is tough to remove them. So the most effective way of removing virus is when they are inactive.