download two software from wd site
1.WD Acronis true image
2. WD Align (you should input the S/N of WD disk you buy. )
3.run old disk system (in your laptop) ,install these two software,
4.then connect new disk with usb port to laptop
- run WD Align to new disk .
till this step，when old disk in laptop and new connected with usb,
acronis true image clone can finished ,no grey bar appear again,but something go wrong, when boot system from new disk a error "read disk error" occured.
then I made reverse clone.
made a acronis true image bootable CD (use acronis media builder)
put new disk in laptop and old one out connected with usb.
3.boot system with CD ,
use clone function . can use "automatically " style .
then It clond successfully .
restart new disk system without boot cd and usb , it's fine.