How to fix cyclic redundancy check on external hard drive

blastewitz

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Sep 28, 2010
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Hello,
i have a Iomega 1Tb external hdd, and the problem is i can't access it in windows 7 anymore i get the crc(cyclic redundancy check) but i can access it with a imac and a dell with windows xp without any errors whatsoever. can anyone help please? thank you!
 

mgrzTX

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Jun 30, 2010
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Buy a new HDD, and move all you're important data to the new HDD. While you may be able to access the HDD w/ imac or xp Windows 7 CRC error is indicating the HDD is dying either way. Assuming you already have a external enclosure or some other means of reading the HDD, a new 1 TB HDD isn't too incredibly expensive. You need to make sure your enclosure and Hard drive are compatible before buying although, they should probably be SATA connections.
 

mgarand2k11

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Apr 26, 2012
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crc error doesn't necessarily mean that the hard drive is dying, it could be as simple as a faulty usb or firewire cable. if it is working on other computers then it is more than likely a driver issue, try rolling back the usb controller drivers.
i had the problem on windows 7 at first i thought it was a driver issue then i managed to replicate the error on another machine it turned out just to be a short in my usb cable
 

timelessdeb

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May 19, 2012
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mgarand2k11 is absolutely correct! I had the same problem; I couldn't read my photos on my external Iomega drive. I tested by changing my USB cable to one I use for my mobile phone and it worked - Thanks!

 

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