The driver is working, but the application is using the wrong communication protocol (e.g., trying to use RNDIS/Ethernet over USB instead of bulk).
Windows will attempt to install a generic driver if you plug in a device before installing the manufacturer’s software. This often results in a "DJI Bulk Interface" but with the wrong inf file. dji bulk interface driver
Power on your drone. Connect it to the PC via a (not a charge-only cable). Windows should now recognize the device and associate it with the DJI Bulk Interface driver automatically. The driver is working, but the application is
// Take a photo if (dji_camera_take_photo(camera) != DJI_ERROR_OK) std::cerr << "Failed to take photo" << std::endl; return 1; Power on your drone
Windows Driver Signature Enforcement is blocking the driver because it is not properly signed or your system is in test mode.