No serial port identified on Boron

[joe_boron]

I also noticed that someone else has the exact same problem at around the same time; could it be caused from something on Particle's end?

Serial suddenly not identifiable, boards are flashing/running

So that's the CDC serial device, which is unchanged on the Particle side. Are you using the Workbench Particle: Serial Monitor, Particle CLI particle serial monitor, or a different terminal program? I'd first check to see if the device shows up in the Device Manager. There's a possibly a Windows device driver issue. The tips in this document may help.