Windows 10 has changed the way USB drivers are installed - in most cases the driver will now be installed automatically, so there is no need for the user to download and install a driver manually.
Because of this, you should just need to connect the UM-ONE to a USB port on a Windows 10 computer and the driver will be automatically installed (this can take 10-20 seconds).
Once you have connect the UM-ONE, the small LED labelled "USB" should light up indicating that the interface is receiving power and communicating with the computer.
You can also check on your computer to confirm that the UM-ONE is connected correctly - open the Device Manager and confirm that the UM-ONE is listed under "Sound, video, and game controllers."
Once the driver is installed and the USB light on the interface is lit, you should then be ready to use the UM-ONE with your music applications.