A cyclic redundancy check, known as a CRC error, often occurs when you're attempting to transfer data to a hard drive. It's most commonly caused by an interruption in the recording process, but also can be a sign that you've got problems with your hard drive or optical drive.
Here are some steps fixed the issue:
Rule out problems with your computer Start by defragmenting your disk. Click the "Windows or Start" button in the lower-left corner of your computer screen and select "Control Panel." Click the "System and Security" icon. Choose "Administrative Tools," then "Defragment your hard drive." This will clear up clutter on your hard drive that could be causing the error
Use the CHKDSK program in Windows to see if there are other problems with your hard drive. Click the Windows or Start button and select My Computer or Computer. Right-click the drive with the CRC error. Choose Properties, then select the "Tools" tab. Click Check Now. Make sure the program will fix disk errors by checking the top square in the dialog box. Click Start.
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w7
First, please disconnect all USB devices and then perform the following steps:
Click "Start" button, type "devmgmt.msc" (without quotation marks) in the "Search" bar and press "Enter". Click "Continue" if necessary.
In Device Manager, double click to expand "Universal Serial Bus controllers", right click on the Host Controller, click "Uninstall" and click "OK".
Repeat the step 2 to uninstall all items under "Universal Serial Bus controllers".
Then, restart your computer and Windows 7 will reinstall all USB controllers automatically.
for xp
click start control panel administrative tools computer management device manager scroll down universal serial bus controllers you could see a yellow question / exclamation mark? ! or a red X
you will need to update/reinstall drivers
right click to reinstall drivers
if you can see your usb but its not working
ports(com&lpt)right click update driver
sometimes the wires inside the cable will be damaged due to bending or stretching or placing heavy equipment upon the cable
just replace the cable of the hard disk, when you plugged the external disk drive you got that windows could recognize the USB device change the cable everything should work fine again,
if you can see your usb drive but its not working
ports (com&lpt) right click update driver if this fails to fix the problem
check the USB leads that attach to the motherboard usually red white green black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems to a computer and its parts
if this fails to fix the problem Downloads to Recover Your Files and Save Your Bacon and 10 Best Free Hard Drive Utilities.
Some addition links found on Googlehttp://www.datarecoveryreview.net/
http://www.easeus.com/resource/hard-disk-data-recovery.htm
hope this helps
click start control panel administration tools computer management device manager look through all of your devices if you see a yellow question mark?or exclamation mark ! or red xright click to reinstall drivers or
if you can see your usb but its not workingports(com&lpt)right click update driver
sometimes the wires inside the cable will be damaged due to bending or stretching or placing heavy equipment upon the cable
just replace the cable of the hard disk, when you plugged the external disk drive you got that windows could recognize the USB device change the cable everything should work fine again,
check the USB leads that attach to the motherboard usually red-white-green-black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems
if this fails to fix the problem you might have to install a usb 2 or 3 card they are cheap and easy to install you can buy these on Ebay very cheap hope this helps
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