As *THE RAVEN* If you want to be able to restore a whole drive and most importantly the O.S.
Acronis, and Ghost for that matter work from a boot state without loading windows. Without this sort of lock-down the system cannot be copied anywhere because so many of its files are open and changing.
Data is quite another matter and can be copied to the external HD or other drives without fuss, but if it is a full system backup you have to use specialist software.
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