I currently have an Arduino Uno R3 that refuses to allow me to upload code. First the L Led on the board is on all the time which my other Arduino doesn't do. Second it shows as a "USB Serial Device" in device manager. In the Arduino IDE Port is greyed out when I attempt to use this Arduino. Any help would be appreciated I don't want to start messing with bootloaders if I don't have to. I should note that the other Arduino works perfectly. I would just like to get this one back up and running for multiple projects. Oh I am running windows 10 so that we are all on the same page. If you need anymore info let me know and thanks for all the help I am about to get.