Hello, I found this thread a year later. I'd like to know what the root cause was and the solution which helped you fixed the issue - windows cannot find the DFU devices at USB port.
After I installed particle CLI and the USB drivers, the devices (Argon, Bogon, and Xenon) at USB port can be found, programed without problem. However, After some time, the windows cannot find the USB devices any more, at all. I left them untouched for some time (couple of weeks), tried again. They worked again - could be found and programed through USB - I had no idea what happened. But about 3weeks later, the devices cannot be found again ... Need help!