When I run the Arduino software, I get a "Serial port not selected." When I go to Tools to select a port, the Port is grayed out.
I tried to install the CH340 drivers, but I get "The drive is successfully pre-installed in advance"
I also tried the Add hardware Wizard - Action, add legacy, Arduio Uno, but get "software for this device is installed, but may not work correctly"
The device cannot start (Code 10)
I am using version 1.8.15 and tried the 1.0.6
The Uno board is plugged into USB port and the red light is lighted up.