How to retrive data from a not working hardware?

What do you mean by "not working hardware". Are you speaking about the computer system itself, or do you mean the disc. If the disc is still functional, data should be retrievable. I remove the disc from the system, put it in a docking bay (either eSata or USB), mount the file system(s) from a Linux computer, and copy the data to another external drive, such as a thumb drive or other such device.

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