I have a 1.5tb usb3.0 drive that I cannot copy larger files to - I get a 0x0000045D - I/O Device error - whenever I try to copy larger sized files - 7GB files or more. It works fine with smaller files. I have tried copying with regular "copy", terracopy and robocopy methods. I have removed the USB device, uninstalled the driver, rebooted and then hooked it back up - no go. I have removed the device with deleting the driver, rebooted and that didn't fix it. I have tried it on another USB 3.0 port, no go. Tried it on a usb2.0, no go.