It is a WD10EXEZ SATA,64MB Cache 1.0TB hard disk. I bought it in the end of 2012. Now it is almost three years.
I found it is not working yesterday morning. The Windows 7 can not found the hard drive when I boot up it. It can be found after a reboot.
But, some files are not able to access.
So I tried to do the backup all the important files. Most of the files can be copied to the backup media. The error of some missing files are shown as below.
I have to skip these kind of files to continue. And during the backup, the disk error shown randomly.