I took a few weeks off from my Arduino Uno and recently got this error when trying to upload a new sketch. When I click on Tools, the Port button is greyed out. What I have tried so far:
-a different USB port
-I have restarted my Windows laptop.
Suggestions on where to start. I have screenshots, but I don’t see an image upload button (probably because I am a new user). I am also a noobie with Arduino.
Device Manager did not even have Ports (COM & LPT) listed as a choice. So I added the Arduino back in under “Add Legacy Hardware” and it showed up under COM7. But when I go back in IDE, and move it to COM7, I get the same error, except it says COM7 instead of COM5