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It is unfortunate that some clients will opt for any type of recovery attempt without understanding the inherent risks associated with unprofessional recovery procedures. We at Northwest Data Recovery hope that this explanation will help to better understand why freezing drives could or could not work. Older drives (5yrs ago) would become misaligned and fail to function, failing to spin any longer because of misalignment of the servo or bearing lock. By lowering the core temperature of the drive, you are shrinking all of its components by a very small degree, which could sometimes realign everything (at least long enough to spin up one more time and copy off all data). Because hard drives have been built to more specific standards, eventually getting to the point where incorrect spacing between the heads and the platters, even to a micro-inch, can make the drive unreadable affecting the alignment of the servo and service area. These newer, more exact drives, the spacing difference provided by freezing a hard drive is massive, and usually ends up making the heads even more off-track. This can cause platter damage, data corruption, and other issues caused by spacing differences and moisture. To prevent moisture problems the manufacture ships a silica moisture package along with the drive, this packing is not in the drive itself the only packet that is in the HDA is a hepa filter to clean the outside air as it come into the drive. Unfortunately, if the drive is spinning no amount of freezing will help. What it boils down to is data recovery experts will never freeze a hard drive it is a unprofessional method and the risks to the clients data is too high. If that was the standard method of recovery we would not need to spend hundreds of thousands of dollars on recovery equipment and research and development.
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