Then select the cloned drive to boot from, and if everything worked out you should see your desktop and files as if you were booted to the internal drive. With the drive connected to the system, reboot and hold the Options key to bring up the boot menu. The easiest way to do this is to simply boot off of it. Once the clone has been made, you will need to test it out and ensure everything went smoothly. This will not make a difference to most people, but in some instances block-level cloning may be preferred. This keeps the files as they are on the disk, and ensures they do not get moved to different locations on the cloned drive.
Unlike file-level cloning, which alters the physical location of files on the disk, block-level cloning is like a virtual photocopy of the drive structure and on a per-block basis copies the layout of the source drive to the destination drive.
