We had some 500GB wd passports that were not showing up on the drive list on any computer.
We noticed another thread that was locked that didnt have the solution here " http://community.wdc.com/t5/WD-Portable-Drives/500gb-my-passport-essential-doesn-t-show-up/td-p/52434" so I am posting a fix for it.
Try this…
Check your hardware section in windows and see if the drive is listed.
If you plug in your drive and it makes the connect and disconnect sound when you plug/unplug it.
This means the drive is working and its not a cable, usb, or dead drive issue.
The solution is to download the WD Quick formatter and run it.
You will see your drive listed in the drop down box that isnt showing up in your drive list.
Select it and format it and your drive will re-appeal as “New volume” in your drive list.
A step by step guide of the program can be found here:
http://wdc.custhelp.com/app/answers/detail/search/1/a_id/3868
You can download this program from the western digital website at:
Pc: http://download.wdc.com/misc/WD_Quick_Formatter_Win_1_2_0_10.zip
Mac: http://download.wdc.com/misc/WD_Quick_Formatter_1_0_0_13.zip