Trinity Rescue Kit:

Anyone who dual-boots, runs, or manages a heterogeneous network with Windows and Linux workstations must occasionally contend with offline or dead systems. Of course, the open source world has plenty of good tools to help get these boxes back on track, or at least recover valuable data. Trinity Rescue Kit (TRK) is a small yet powerful bootable Linux distribution that rescues, repairs, resets passwords, and clones dead Linux and Windows installations.