Help with Mackie ProFX12

I recently got a Mackie Pro FX 12 USB Mixer and also recently downloaded Audacity 2.0.2 to use with it. I think I installed the driver for it (my computer said I did) and I’ve used the mixer for live audio before so I know it works, but I can’t seem to get it to work with Audacity, I cant find it to connect or anything. If anyone with a similar set up can give some advice it would be greatly appreciated.

Does it appear in Windows Device Manager? If it’s not there, Audacity will never find it.

Windows has to mount and know about it before you start Audacity. Koz