|siva_326 it is a misconception to think you can protect your data by a partition. It does not protect you from drive failure or virus infections.|
As long as you save your data to a folder other than a system folder [users/documents and settings for example] you can repair the OS without affecting those folders containing your data.
None of this is in replacement of doing good backups.
This exercise is a complete waste of time imo and is based on practices no longer needed in todays computing due to the ability to repair the OS.
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