We never overwrite what may hold the user's last files. Again, you have your original, your backup and if you wipe either out you fall out of what we call being in a backup position. Now if you copied the clone onto a blank HDD then it's all safe.
I recently encountered problems with loads of my Preferences settings going missing (posted a thread here
But a thought occurred to me: I have a perfect CCCloned Backup Drive of my original HD that I did 6 weeks back.
Can I use this to overwrite the existing Hard Drive - i.e. make the Clone the internal drive?
I'd imagine first I'll need to bootup from the Cloned disk. Then, I could choose the internal HD as the destination.
If so, I guess I will I need to format the original HD and what pitfalls should I watch out for? Am I going to do more harm than good?
Note: I thought of simply finding my old .plist preference files on the Cloned drive and replacing the original, so as to get the system back to the way it was before preference-wise - but oddly the .plists for mac/mail.plist etc weren't on the Cloned drive. For a layman like me that seems strange.