Windows now will take over the driver installation.
(//www.arduino.cc/en/uploads/Guide/Win10MKR1000Install_3.png)
You have installed the driver on your computer. In the Device Manager, you should now see a port listing
similar to “MKR1000 (COM24)” If you have multiple COM devices, the MKR1000 will probably be the COM
port with the highest number.