I bought my HDD on 2009. It´s “WD Passport Elite External 500GB USB 2.0” Serial Number [Deleted].
I never had a issue with my HDD but on last week I decide to format and I download the software named Windows Data Lifeguard Diagnostics ( http://wdc-es.custhelp.com/app/answers/detail/search/1/a_id/6130/c/130/p/228,195,254#external)..)
I used the option FULL ERASE. The process was end correct.
But when I connect the HDD in any computer (Windows7 or Mac) the Disk not appear in “My PC” .
The HDD is connect (On Devices and Printers) but I can open or load or save any file on HDD.
Maybe I need a driver for my HHD, I try to find any answer on WD portal and I find this link( http://support.wdc.com/product/download.asp?modelno=WDMLC5000CN&x=11&y=13 )
but I have the same result.
COULD YOU HELP ME?
Hello,
Since you performed a full erase, most likely the drive needs to be initialize through disk management.
See if the following link helps
How to access Disk Management in Windows XP, Vista, 7 or 8 to manage hard drives.
http://wdc.custhelp.com/app/answers/detail/a_id/1284/session/L3RpbWUvMTQyMDgzMjM1Mi9zaWQvVjM0cEwxY20%3D
Hi ERmorel Thanks for your solution… but dosent work… 
Any instruction or other idea?
I just got a My Passport Edge that was formatted for a Mac (I have a PC). Reformatted it to NTFS, easy as pie! Then I tried to access it. No go. It showed up in disc management and the safely eject media whatsit but couldn’t access it anywhere else. Played around for a few minutes & decided to give it a drive letter. Bingo! Shows up in my file management software & I can move files to and from it.
Now the next test is will my WDTV box recognize it?? I’ve transferred about 300 DVD’s to digital (mkv) so I don’t have to search through all those DVD’s to find the movie I want. Planning to get them off the computer & onto this.
Anyways…try giving it a drive letter and see if it shows up. Worked for me.
