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You can use the SP_DEVINFO_DATA returned by SetupDiEnumDeviceInfo with other SetupApi APIs or use SetupDiGetDeviceInstanceId to retrieve a unique device instance identifier (ID) for the device. Use SetupDiEnumDeviceInfo to enumerate the devices in the set. To retrieve information only for devices that are present in the system, set DIGCF_PRESENT in the Flags parameter. Use SetupDiGetClassDevs to retrieve information for a set of devices. You can use the unique device instance ID with CM_Locate_DevNode to retrieve a DEVINST that represents the device to use with other configuration manager APIs. To retrieve information only for devices that are present in the system, set CM_GETIDLIST_FILTER_PRESENT in the ulFlags parameter. Use CM_Get_Device_ID_List to retrieve a list of unique device instance identifier (ID) strings. Remove all drivers for this device and all Bluetooth devices previously installed on your computer. Follow these steps to install: Unplug the Bluetooth dongle. It functions with the Windows Bluetooth driver. To enumerate installed devices safely, follow these steps. CsrBtPort Bluetooth Shareware Cambridge Silicon Radio This Bluetooth adapter doesn’t need a special driver on Windows 8 or 10. The PnP manager also performs additional filtering of registry information. This information, such as whether the device is actually present or is a phantom device (one that is not plugged in), is held by the Plug and Play (PnP) manager. Registry keys do not contain the required information to enumerate installed devices on the system. You should not enumerate devices by using registry keys directly.
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