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A boot disk is a removable digital data storage medium from which a computer can load and run an operating system or utility program. [1] The computer must have a built-in program which will load and execute a program from a boot disk meeting certain standards.
The Ultimate Boot CD (UBCD) is a bootable CD-ROM containing a collection of diagnostic tools including CPU tests, memory tests, virus scanning, and other tools. [1] [2]The Ultimate Boot CD (UBCD) contains over 100 system diagnostics and hardware troubleshooting utilities.
A live CD or live DVD is a CD-ROM or DVD-ROM containing a bootable computer operating system. Live CDs are unique in that they have the ability to run a complete, modern operating system on a computer lacking mutable secondary storage, such as a hard disk drive.
The Linuxcare bootable business card, first released in 1999, was the first Live CD to focus on system administration, and the first to be distributed in the bootable business card form factor. As of 2023 [update] , Finnix (first released in 2000) is the oldest Live CD still in production.
Newer versions of EasyBCD also support creating bootable USB disks, by deploying BOOTMGR and the BCD onto a removable disk and performing the necessary actions to make the drive bootable, after which it can be loaded into EasyBCD to add and remove the various supported entry types in order to create bootable repair USB sticks. [7]
Either in hard disk emulation when the boot information can be accessed directly from the CD media, or in floppy emulation mode where the boot information is stored in an image file of a floppy disk, which is loaded from the CD and then behaves as a virtual floppy disk. This is useful for computers that were designed to boot only from a floppy ...
In these cases a computer can often be "redirected" to boot from a USB device through use of an initial bootable CD or floppy disk. [ 5 ] [ 6 ] [ 7 ] Some Intel-based Macintosh computers have limitations when booting from USB devices – while the Extensible Firmware Interface (EFI) firmware can recognize and boot from USB drives, it can do ...
The boot partition (or boot volume) [5] is the disk partition that contains the operating system folder, known as the system root or %systemroot% in Windows NT. [6]: 174 Before Windows 7, the system and boot partitions were, by default, the same and were given the "C:" drive letter.