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原帖由: Gabe ,

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Opening the drive up and rotating the platters will only work if you have a clean room and not one piece of dust enters the chamber. If and when ONE dust enters, it is dead. gonner. kaput. I would seriously do this ONLY as a last resort.

Try these methods instead:

1. Freeze the drive for several hours in a moisture proof bag of some kind, let it warm to room temperature, and try the drive again. If successful, backup all data immediately and replace the drive.

2. If that is not successful, freeze the drive again and once it is frozen, hook the drive up and try again. Use dry ice to freeze the drive, and keep some on it wrapped in a towel sitting on the drive while attempting to get the system to recognize the drive. If you are able to see the drive now, instantly back up everything. You should always know where you need to go to grab your data before you try these steps because if you are able to see the drive at some point it might not be for a long period of time.

3. While the drive is NOT powered up slap the Hard Drive on a table, on one of its side edges, not very hard but hard enough to perhaps break a egg. If the fault is the actuators that actually move the head back and forth this might break it free enough to actually become "unparked" and hopefully allow you to recover your data once the drive will spin up. **Note that if you do this with the drive spinning it may destroy the drive.

([http://www.wikihow.com/Recover-a-Dead-Hard-Disk|source])

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