We have all run into cases where Windows refuses to load for one reason or another. The problem may be a hardware or a software failure, and the problem may seem to be irrecoverable. Yet often Linux can be used to help recover data that otherwise might be lost.

Creating the Image:

we use dd command to image the disk or partition. dd is a common UNIX program whose primary purpose is the low-levellow-level copying and conversion of raw data.

bash# dd if=[device] of=[imagename]conv=noerror