Completely remove client

I have a problem with the client.  When I installed it I had a usb hub attached to the intel nuc.  I removed the hub before I took an image, but the client mapped all the "drives" that it thought should be attached to the device.  When I log into my domain account it authenticates but it can't map the home folder as the drive letter is in use by the wyse client.  I have removed the drive entries in the registry and then rebooted but they keep coming back.  Is there a way to completely uninstall the client, every reg entry, everything.  And then reinstall it with nothing attached so that it won't map the drives.