bootable disk

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bootable disk

A CD-ROM or DVD-ROM that contains its own operating system ready to load. PCs are typically configured to look for the OS on a CD or DVD first and then the hard disk. Newer machines can also boot from a flash memory-based USB drive (see USB drive).

System and Data Recovery
A bootable disk is used to recover a failed system when the OS on the hard disk cannot load. The OS on the bootable disk does not have to be the same as the OS on the hard disk. However, it must support the file system on the hard disk, so that hard disk files can be examined and repaired. In addition, the OS on the bootable disk must contain the appropriate software drivers for all the peripherals that will be used in a recovery attempt.

If the system cannot be restored, valuable data files can be copied to an external drive. In the past, a compact version of DOS was often used as a bootable disk.

Install or Replace an Operating System
A bootable disk is also used to install a new operating system. By booting its own operating system (not necessarily the one being installed), it is able to format and write to the blank hard disk on a new computer. In addition, when replacing an existing operating system, it gives the installation program complete control of the computer. See LiveCD.
References in periodicals archive ?
This program can be run on a Windows 2000/XP/2003/BartPE system to generate a bootable CD or DVD.
In the future, the lost data can be restored onto bootable CD or DVD discs or copied onto a hard disk.
Rather than booting the PC system to floppy, then restoring from CD, restoration can be done directly from a bootable CD.
The product can work in boot-time, running from the special bootable CD.
After a disaster (a hard drive crash, for example), the DDS-4 drive can be set to appear to the system as if it was a bootable CD.
This changes the personality of the drive from Tape Drive to Bootable CD.
Qwik KonneKT is easily and quickly installed in a standard PC by means of a bootable CD ROM and an encrypted USB keychain storage device.
The distribution can be used on most computers without harming their contents via a bootable CD, or can be installed to a hard drive as a permanent operating system replacement.
In addition to support for drives greater than 137GB, this newest version of Disk Manager includes a Drive-to-Drive data copy feature that allows the user to copy from folder to folder or from partition to partition, and the ability to run from bootable CD for Windows and DOS.
If the user's system is non-bootable, and Recovery Commander has been installed, simply rebooting the machine with the Recovery Commander bootable CD and you can quickly and easily restore the machine to the last known working configuration.