Hello. I have a knock off Uno. when i plug it in, Windows 7 tries to update the driver like it's supposed to. In Device Manager, it shows up in "Other Devices" as ATmega16u2 DFU. i have verified this by unplugging and replugging.
If i open the tools>Serial Port in the arduino SW, it shows COM1 checked but com1 in Device manager is empty.
here is what it looks like. I've been digging around on the internet and the best i can come up with is maybe i put it in DFU firmware update mode. I've tried to reset it a few times with no luck.
any ideas? here are some screen shots