I think that error is caused by a corrupt system file on your computer that fires off when your trying do your copying
I got this error once, I went and did a system restore to an earlier date and it seemed to fix it.
Microsoft points to a bad USB driver. Their fix is below
i,
Method 1: Disable Antivirus
Temporarily Disable Antivirus Software and Firewall on the computer and then proceed with performing the backup.
http://windows.microsoft.com/en-US/w...virus-software
Note: Make sure you turn-on the antivirus software and Windows Firewall later so that the computer is protected.
Method 2: Remove and reinstall all USB controllers
To remove and reinstall all USB controllers, follow these steps:
1. Click Start, click Run, type sysdm.cpl in the Open box, and then click OK.
2. Click the Hardware tab.
3. Click the Device Manager Button.
4. Expand Universal Serial Bus controllers.
5. Right-click every device under the Universal Serial Bus controllers node, and then click Uninstall to remove them one at a time.
6. Restart the computer, and then reinstall the USB controllers. Using latest version from the motherboard manufactures website
7. Plug in the removable USB storage device, and then test to make sure that the issue is resolved.
http://windows.microsoft.com/en-CA/w...th-USB-devices
Method 3: Turn on the Services
Please be ensure that the services that “Volume shadow copy” and the “Windows Backup service” is turned on and set to Automatic in Services Window.
How to go to Services Window?
a) Click on Start
b) Type “Services” and hit Enter.
Hope this information helps.