Normally in this situation you need to have the drivers on CD or USB and click on Load Drivers, but in your case I'm not seeing any mention of this as a requirement either for the motherboard or HDD.
Microsoft lists the device as fully Windows 7 64bit compatible.
A look at the WD support forum shows another person having the same problem as you, the recommendation to this user was to return the drive as defective.
I solved the problem by cleaning the disk drive as below.
-On the boot disk get past the language selection, select Repair, open Command Prompt and type the following commands;
select disk <number>
-Restart the system, the disk shows up for the installation.