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Windows 7: Cyclic Redundancy Check Error!

14 Dec 2014   #1

Windows 7 Pro 32bit
Cyclic Redundancy Check Error!


I have a WD 500 GB external drive, ive been using this as my back-up for about 2 years. It was just recently, when i open my files and folders, and error pops-up "Cyclic Redundancy Check". I tried to reformat the drive but it says that it is being used by another program, it assigned a drive letter but i cannot open it. i also tried formatting it via CMD, but no luck is stays at 0% completed.

Any help or advice if i can still revive my HDD? if i can recover the files.


My System SpecsSystem Spec
14 Dec 2014   #2

Windows 7 Ultimate 64-bit, Windows 8.1 64-bit, Mac OS X 10.10, Linux Mint 17, Windows 10 Pro TP

Unfortunately a CRC error can be bad news. Check some of these pages:
My System SpecsSystem Spec
15 Dec 2014   #3

Windows 7

Hi there.

The CRC errors are caused by bad sectors or because the drive is not communicating with the computer. Can you run an extended test with WD Data Lifeguard Diagnostics and post a screen shot with the results? You can download it from here:

WD Support / Downloads / Other Products / Data Lifeguard Diagnostic for Windows

Let me know how it went.
My System SpecsSystem Spec


 Cyclic Redundancy Check Error!

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