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A Rescue Disk is a disk for scanning and disinfection of infected PCs.

A Rescue Disk should be used in case of an infection that cannot be cured by means of antivirus software or disinfection utilities (for example, Kaspersky AVPTool) running under operating system control. Antiviral treatment is more effective in this case, because the malware which infected the system cannot not gain control in the process of operating system startup.

A Rescue Disk is built on the basis of Linux operating system kernel and is an .iso file which includes:

* Linux system and configuration files;
* A set of utilities for operating system diagnostics;
* A set of auxiliary utilities (file manager, etc.);
* Antivirus database files.

An ISO image is a .iso file with an image of a CD/DVD disk. If used via special software, it can substitute optical disk.

There are two ways you can start up a PC with a damaged operating system:

* Locally, from a CD/DVD-ROM disk. The PC must have a CD/DVD-ROM drive.
* Remotely, from administrator workstation or another networked PC.

In order to start up operating system of a damaged PC from a CD/DVD-ROM disk, do the following:

* Configure the PC to boot from CD/DVD-ROM drive in BIOS (see your motherboard documentation for details).
* Insert a disk with a written Rescue Disk image into CD/DVD-ROM drive of the infected PC.
* Reboot the PC.