WD passport will not mount on Mac running Mavericks

I have never had WD software installed on my Macbook pro and have been running my back ups from time machine. I updated to Mavericks and since then i have not been able to mount my WD passport. I did try to download the WD utility but that wouldn’t recognize my drive either. Not sure where to go from here?

Hello Gingella, have you tried opening the Disk Utility to see if it’s recognized there? Check the link below for more information. 

How to test a drive for defects or problems on a Mac