Wow, there seem to be a lot of problems getting the Arduino Uno to work with Windows 8.1. After spending hours reading and trying things, here is what I have tried and failed on:
- Utilized a Ricochet Modem USB driver instead of the Arduino one.
- Attempted to utilize a Prolific USB driver, but it never showed up in my device manager.
- Allowed for downloads of unsigned device drivers
- Provided alternative DC power supply to the board
- Attempted to use some of the older drivers
The only thing that I have read about and not tried is to go out to the store to buy a high quality USB cable.
When I first started, I had the Arduino driver show up in the USB section with an Unknown USB Device (Device Descriptor Request Failed) Code 43 error. I had some success in that Arduino eventually showed up as COM port 3, but this time with a Code 10 error. But I forgot how I got there. I have since uninstalled the driver, and are now back to the driver in the USB section with a Code 43 error.
Is there something I am missing?
