Hi, 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. Thanks for using Fixya.
Try CBD(Copy Bad Disk)
SOURCE: 500 MB data
1. this ( cyclic redundancy check) is the computers way of saying " i don't recognize the data check-sum.
2. This issue could be due to the data controller on the USB drive being defective.
3. try purchasing a new case with a new controller board.
4. Check to see if your 1TB USB drive is compatible with your pc.
SOURCE: i cannot copy or read
CRC errors are when the data is corrupted. You should run some tests on the hard drive.
Read this:
http://www.labnol.org/software/test-hard-drive-for-problems/17430/
SOURCE: i can't access wd 320gb element external hard drive
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 x if you can see your usb but its not working even if you dont have any red or yellow marks you might have to Click Start, then type device manager in the Search box then click Device Manager Expand Universal Serial Bus controllers. Right click a device and click Uninstall. Repeat for each device. Once complete restart your computer. Your USB controllers will automatically install This method prevents your USB external drive from powering down Disable USB selective suspend setting. This method prevents your USB external drive from powering down. Click the Start button type power plan in the Search box then click Choose a power plan. Next to your currently selected plan click Change Plan Settings. Click Change advanced power settings. Click the box to expand USB Settings then expand USB selective suspend settings. Click Plugged in then click the drop down menu and select disabled. If youre using a laptop click Battery then click the drop down menu and select disabled. Click Apply then click OK. if this fails to fix the problem check usb leads for secure dust free seating 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
right click to reinstall drivers or
ports(com&lpt)right click update driver
hope this helps
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