12, January 2017: Learn to recover data from undetected internal hard disk lost data due to not formatted, not recognized, not working, not showing up, power failure, logical damaged.
I have encountered serious internal hard disk damage problems which lead to important data loss. Of course, in the end, the problem is a satisfactory solution, but this experience is very interesting, hoping to inspire people. First of all, I encountered the problem is: my computer running Windows operating system, in use suddenly blue screen; Then I restart the computer, reboot, but can not enter the operating system. Even if I am ready to reinstall the operating system, there is a bigger problem, the computer motherboard did not detect the hard drive. (My hard drive is WD green.)
http://www.aidfile.com/hard-drive-recovery/how-to-recover-data-from-undetected-hard-disk.htm
Through my own problems and solve problems encountered experience, I summed up a few ideas:
1: When the hard disk can not be identified, should not be easy to do the physical maintenance of the hard drive, be sure to have enough patience to find a solution.
2: The hard disk can not be identified, there are many hardware and software reasons, sometimes the file system or partition table damage, this situation, the direct use of data recovery software will be able to recover data; sometimes the motherboard configuration is damaged, the motherboard configuration reset to Factory settings, remove the motherboard battery and re-install the battery, in many cases this simple means will be able to solve the problem; some of the most common very simple problem, only need to clean up the computer parts of the dust can be;
3: Even if you have tried a variety of solutions, still can not solve the problem, do not be discouraged, have patience, still do not easily physical maintenance hard drive. 4: similar to the problems I mentioned earlier, and sometimes, the hard disk used for a long time, he just need to rest for some time, sometimes for another computer, only need more time to wait. It should be noted that some failures are caused by insufficient power supply 5: If in the end anyway can not solve the problem, do physical testing should be very cautious, at least in the detection of non-destructive means to be used. 6: A serious failure of the old hard drive, backup and recovery of important data, try not to continue to use.
Many times, the hard disk can not be identified, not the hard disk is really bad hardware, and even partition and file system are not broken.An old internal hard drive, like a 50-year-old man in the cold winter to play basketball, he did not hurt, but he needs a long time to do warm-up exercise.
In short, if you encounter a similar problem, do not worry, do not rush to dismantle the hard drive to do hardware maintenance treatment, as is very dangerous, like desktop sometimes faulty, you only need to clean the computer dust Can solve the problem without having to spend money to find experts.
Due to the extremely close spacing between the heads and the disk surface, HDDs are vulnerable to being damaged by a head crash a failure of the disk in which the head scrapes across the platter surface, often grinding away the thin magnetic film and causing data loss. Head crashes can be caused by electronic failure, a sudden power failure, physical shock, contamination of the drive's internal enclosure, wear and tear, corrosion, or poorly manufactured platters and heads.
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