WD External Hard drive not recognized in my computer

WD External Drives WD Portable Drives
6

penry1,

What is your drive from below?

http://support.wdc.com/product/download.asp?level1=1&lang=en

1.  Pick the drive and see if there is Firmware update.

2.  if yes, please update to latest.

3.  if no, go to Disk Management/Windows and Disk Utility for Mac

4.  If the drive volume shows up right click and format to NTFS/Windows and GUID partition and HFS+J for Mac