How to retrieve data different computer

WD External Drives External Drives for Mac
4

If the Passport is not showing on the Computer/My Computer window, once you unlock it, be sure to connect the USB cable directly to the PC, avoid using USB extension cables or USB hubs. You can also check if the Passport is recognized on the Disk management window. Check the link below for the steps. 

How to access Disk Management in Windows XP, Vista, 7 or 8 to manage hard drives