just got my first Arduino starter kit, downloaded and installed latest IDE (1.8.5) on my Win10 64 bit, connected the Arduino Uno board to USB via the provided cable.
The Uno green "on" led and yellow "pin13" led light up (is it normal to get the pin13 led on continuously at start up?) , got a message about configuration of a new device (apparently successful), fired up IDE, checked that "Arduino/Genuino Uno" is selected under "Tools | Board".
BUT: the "Tools | Port" menu is grayed out and, in Device Manager, ATmega 16u2 DFU (the USB controller, I believe) is under "Other devices" with a yellow warning icon and no driver installed.
So I tried to install the driver manually, selecting the Drivers directory under C:\Programs (x86)\Arduino and selecting the "look in subfolders" option: says it cannot find a driver for my device.
Also tried to right click and select Install on the arduino.inf file in the Drivers directory: says "Installation complete", but still the driver for the ATmega 16u2 DFU device is not installed.
Tried uninstalling everything, cleaning up with ccleaner and starting over: same result.
What can I try next?
Thanks a lot