I hve ARDUINO UNO
no iot hasn't worked at all even though there is no port issue
the error comes as the above one only .
i deleted and redownloaded EVERYHTHING though nothing is happenening ..
CAN SOMEONE HELP ?????????????????????????????????????????????????????????
The "Access is denied" error happens when the port is open in another application.
Make sure you have selected the port of your Arduino board from the Tools > Port menu.
Sometimes the port will be labeled with the board name in the menu. Other times it will not. If you don’t know which port is your Arduino board, you can find it like this:
Unplug your Arduino board from the computer.
Tools > Port
Note the ports, if any, listed in the menu.
Close the Tools menu. The ports list is only updated when the Tools menu is re-opened, so this step is essential.
Plug your Arduino board into the computer.
Tools > Port - The new port listed in the menu is your Arduino board.
Make sure you don't have any other applications running that might have the port open. Only one application can have a serial port open at a time.
Try restarting your computer. Sometimes a glitch causes the port to get stuck open and restarting fixes that.