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After sudden power surge while the hard drive is in use.Recovering Data from Unrecognized or Formatted External Hard Drive.Why Hard Drives May Become Undetectable?.Nevertheless, knowing why a hard drive isn’t detected on a computer plays an important role in rectifying the problem. That’s why experts suggest we should maintain multiple copies of our crucial data, that too, at different locations and on different storage devices. Most of us use an external hard drive for storing data backups however, hard drives can often be unreliable. Thus, you must be aware of the ways to deal with unexpected problems like the one described above. An external hard drive is just another mechanical device that is prone to damage and corruption like other storage drives. Such situations though alarming, aren’t uncommon. Can anyone give me a hint as to what the problem is and how I can get a hold of my files? There’s a lot of important data on the drive. My machine shut down unexpectedly while transferring some data from the drive and now, it isn’t showing up on my PC. This is surprising since everything was working fine until an hour ago. My computer isn’t detecting my external hard drive. We often come across questions on technical forums where people describe that their external hard drive isn’t detected on their machines.
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