I have a 1TB Western Digital external hard drive, and I am presently working on Windows 7. But now I am suffering with some problem. Whenever I am trying to do any operation on my Western Digital External Hard Drive I am getting an I/O Error 0x8007045D. I am not able to move delete, save and copy files in my hard drive. What I have to do to resolve this problem. I am facing this problem from long time.