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Most advanced backup tools includes an option called "sector by sector". Does this option have to be checked when I backup system partition (an image)? I mean.. In case of HDD failure I have system image and I can easily restore my system on another HDD. Then, if needed, copy backuped data / files from another backup.
I do want to understand when and in which cases the "sector by sector" option is a must to check.
EDIT:
I have read the "possible duplicate question" and I understand that the option allows for backing up the disk in a way that allows accessing deleted / not wiped files. I asked my question in context of restoring system from image backup. I mean.. I want to know, if the "sector by sector" option influence in any way the possibility of restoring system (do windows files have to be in specific place / on specific sectors).
One issue that doesn't appear to be covered by the answers is that some programs hide information in specific locations for licensing or copy protection purposes. Sector by sector will restore this. Without sector by sector, you might need to reinstall the software from the original media or deal with the publisher to reactivate it, or possibly buy a new license. – fixer1234 – 2014-12-27T07:47:24.753
possible duplicate of What's the difference between disk backup and disk copy?
– sblair – 2011-05-10T19:50:01.157Yes, info about undeleted files was clear and answered my question. But as i see i did not make my question clear enough. I will edit the question to be more precise. – Krzysztof Szynter – 2011-05-10T21:29:33.327