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Live CD
Sign in to saveoperating system distribution/image/copy bootable from CD, DVD and possibly other similar media
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Ubuntu 25.10 system running from a live DVD image, with the GNOME 49 desktop environment
A live CD (also live DVD, live disc, or live operating system) is a complete bootable computer installation including operating system which runs directly from a CD-ROM or similar storage device into a computer's memory, rather than loading from a hard disk drive. A live CD allows users to run an operating system for any purpose without installing it or making any changes to the computer's configuration. Live CDs can run on a computer without secondary storage, such as a hard disk drive, or with a corrupted hard disk drive or file system, allowing data recovery.