How to un-enumerate a PNP device in Windows?

Question

I'm doing a bit of driver programming and I have a PNP driver for a pseudo-device that has it's own custom device setup class. The driver is a pseudo-bus enumerator and creates pseudo devices, not unlike the toaster example.

Anyways, I have a whole lot of old, unneeded entries in HKLM\SYSTEM\CurrentControlSet\Enum now. Is there some nice utility for removing old device enumerations in there? I don't seem to be able to do it with devcon or pnputil. I can delete it manually, but that's really tedious given that only SYSTEM has full control privileges over much of what's in Enum.

Answer 1

The reason that devcon remove isn't working is because devcon hardcodes the DIGCF_PRESENT flag, and your old unneeded devices are not currently present. As the devcon source code is publicly available, you can compile your own version that removes the flag.

Hint: start looking in the cmdRemove function.