With my NanoVNA plugged in and using Zadig, zadig lists it as a ChibiOs/RT Virtual COM Port.
I then click on replace driver and once this has run its course it shows up within USB Devices as the said ChibiOs?RT Virtual COM Port.
Then I can right click this device and follow the procedure to find the correct STM driver and update it using browse this computer for drivers, let me pick from a list of available drivers on my computer, which should then show the correct STMicrocontroller virtual COM Port driver to install.
Hope this helps.
Kind regards, James.
