Symantec Ghost (now owned by Broadcom) was a popular disk imaging and cloning software. The "Symantec Ghost Boot CD" (or sometimes a bootable USB drive) was a crucial component of this software. It wasn[SQ]t a standalone program itself, but rather a bootable disc containing the necessary tools to run Ghost *from outside* the operating system.

This was essential because :

*

Imaging a running system:

You couldn[SQ]t reliably create a full image of your hard drive while the operating system was running. The Ghost Boot CD provided a clean environment to perform this task.
*

System recovery:

If your Windows installation was corrupted, you couldn[SQ]t run Ghost to restore it. The boot CD allowed you to boot from the CD/USB, bypassing the damaged OS and restoring a previously saved image.
*

Cloning drives:

The boot CD facilitated cloning an entire hard drive to a new one, something difficult or impossible to do within Windows.


In short, the Symantec Ghost Boot CD provided a way to leverage the full power of the Ghost software, providing crucial capabilities for imaging, cloning, and recovering Windows systems. Because Ghost is older software, modern alternatives exist, though its core functionality is still relevant.