OS: Win 7
Old device: wd5000c032
New device: wdbfjk0040hbk
After installing the included software of the new hdd i could not access the old device anymore.
the old hdd was still working with linux or win7 in safe mode.
I uninstalled the WD Software → the old hdd is working
So i only can suggest don’t use the actual buggy versions of WD DriveUtilities and WD Security!