When you unplug the board, does COM3 disappear from device manager?
I suspect it will not, indicating that COM3 is something other than the Arduino board.
If you don't even get the bing noise (or even "this device has malfunctioned) when you plug it in, that's a very bad sign.
Are you using a known good USB cable? There's been a plague of bad ones lately, try a different one.
Did the board ever work?
Was the Arduino IDE installed on the system via the installer? (installing from zip won't auto-install the drivers).
I see that board has an atmega16u2 as the serial adapter, so the official uno drivers should work (many clones use CH340G or CP2102, which require different drivers - though even these should show as unknown device and make the bing noise when you plug them in w/out drivers).