If not possible, could you then please explain me how the restore-cloning does happen?
Is it something my untechy aunt can do?
I tried this with my parents and while I think it is extremely simple, it seems quite outside the realm of some people. Booting from a CD or DVD seems easy enough.... Until you realise that it needs to be the right side up and that you probably need to press F12 or some other key to access a boot menu.
Next step would be selecting an image from the right place, then the right partition inside it and the right destination. Most parents seem to run away screaming at this point. They do not have 'volumes' or 'poartitions'. They have a C: drive and a D: drive. The C: drive is always full, and the D: drive unused. :-(
However doing it yourself is trivial, and I do recommend using Ghost, Acronis or CloneZilla (or any other free program) to take a image from that cleanly installed computer. Tape a bootable CD to the inside of their case (just for starting the restore program. Even a floppy disk with ghost.exe would do). Store the image either on a DVD (warning 4GB limit!) or on a small FAT partition on the harddisk. Do not mount that partition. If you use windows go to drive management and remove the assigned drive letter. That way you have a local backup, a big enough volume on which you can store it and a ready CD or pendrive to start the restore program.