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#21
You can get http://www.ultimatebootcd.com/download.html and use parted magic's subprogram TestDisk to repair it. The step by step guide is TestDisk Step By Step - CGSecurity
It is a somewhat complicated process, but it is all laid out there for you to use.
Edit: updated the site to get ultimatebootcd. The downloads are in the mirrors at the bottom of the page.