Need WD SmartWare software for My Passport

My WD SmartWare software for My Passport external hard drive stopped working. I tried to uninstall it and can not because I get an error that the MSI file is not found. I searched my Hard Disk and could not find and WD*.MSI files. How can I uninstall it and where do I get the latest version that will work with my hard drive - I understand that WD BACKUP does not support it so I need a good version of WD SmartWare

@drbarak If you are using Windows have you opened the Control Panel and chose Uninstall a Program? Find WD SmartWare and select it, then try Repair and see if that solves your problem.
See example image below. Click on, tap or activate image to enlarge it.

If not you can download SmartWare from here.