Can't install new USB driver

Even after uninstalling the old USB driver I still get the error “older version is found. Please uninstall it before installing new driver” What do I do now? Please help!

I am meeting the same problem. When trying to install the driver I have message error 25000.1.
Any clue on this?
It seems that when installing the Yamaha app from V 1.7.3 to 1.9.9 or even the app finds some hidden files.
What should I do to enable this driver to work properly?
Thanks for your comments