Is your GoPro cable a data cable or a power only cable? They look exactly the same. If you can test that cable to see if it pushes data that would be one step in the troubleshooting. USB drivers can be a pain, especially with Windows Plug and Play. Even removing the device from Windows in device manager if you can test that cable to see if it pushes data that would be one step in the troubleshooting. USB drivers can be a pain, especially with Windows plug and play. Even removing the device from windows in device manager sometimes does not fix things because when you plug the device back in it will still try to associate with incorrect driver. If the PC does not see the device at all other than the cable being bad all I can think of is that you may actually have a bad port.
