When I try to upload a sketch to my Nano board I get the following message (the sketch loads and runs if I upload to my UNO board). Both boards are from Arduino.
Arduino: 1.8.13 (Windows 10), Board: "Arduino Nano, ATmega328P"
Sketch uses 4068 bytes (13%) of program storage space. Maximum is 30720 bytes.
Global variables use 242 bytes (11%) of dynamic memory, leaving 1806 bytes for local variables. Maximum is 2048 bytes.
An error occurred while uploading the sketch
avrdude: ser_open(): can't open device "\.\COM3": The system cannot find the file specified.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
The IDE shows a connection to Nano on COM 3 in the lower right hand corner, but in Tools, the Port selection is greyed out. If I go to Board Manager it shows Arduino AVR Board version 1.8.3 installed but won't give me the option to update (running Arduino version 1.8.13). My device manager says the drivers are not installed for FT232R USB UART, but can't locate them to install them (running Windows 10). I've gone to the FTDI website but can't find the necessary drivers there either. I'm no expert so haven't been able to go further. Any help available?