Hi, I have a pc with the Arduino software on it. I have used arduinos on it for many years, and it worked fine. Today, after about 6 months from the last time I used arduino on this computer, I tried to upload a sketch and the computer cant find the serial port. Device manager dosnt update when I plug in the arduino, and I dont know what to do. Any help appreciated. I am using windows 10. The usb ports work, I have a teensy 2.0 which the computer recognizes, but I cant get the arduino to work. I am trying to use an arduino uno, and I have tested multiple cables.
Did you disconnect everything from the Arduino board first ?
If not that is your starting point.
Could you also take a few moments to Learn How To Use The Forum.
Other general help and troubleshooting advice can be found here.
It will help you get the best out of the forum in the future.