WD Smartware for my MAC

Used the WD5000H1Q-00 for backing up my old MacBookPro OSX since 2007, but now I bought a new version of OSX 2013 and the WD seems to have caused havoc with my address/contact app. The Apple Genius Bar told me to plug the WD into the new machine so that I could delete it, but there is no such plug on the new computer. What can I do? Help!

If you wish to delete all the files in your WD drive, you can follow the link below for the steps.