What caused Cyclic Redundancy Check error on my BitLocker-enabled external hard drive and how to fix it?

Posted by Forgiver on Super User See other posts from Super User or by Forgiver
Published on 2012-06-17T09:06:43Z Indexed on 2012/06/17 9:18 UTC
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Filed under:

windows-7

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data-recovery

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bitlocker

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crc

I have an external hard drive that is connected to my computer (Windows 7 Ultimate 64 bit) via a USB port. BitLocker has been activated on the hard drive to protect the data.

Yesterday I started downloading a huge data from the internet but now it failed to complete because of CRC error.

I tried to repair it with chkdsk f:/r where f is the drive letter of that hard drive. There are many messages reporting "unreadable" as follows:

enter image description here

What caused Cyclic Redundancy Check error on my BitLocker-enabled external hard drive and how to fix it?

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