Failure phenomenon:
Umdf HID MiniDriver Device unknown device appears in Device Manager under Windows 8 system, as shown in figure:
Reason Analysis:
Umdf is the User-mode Driver framework (user-mode driver architecture, referred to as UMDF), UMDF provides plug-in (PNP), Power Manager, asynchronous output input functions, Umdf HID MiniDriver Device The whole meaning is the driver of a Plug and play peripheral, this may be an external mouse, keyboard, camera, card reader, USB disk or other USB device driver should be automatically installed by the system but not successfully installed.
Solution:
1, into the device Manager of the Universal Serial Bus controller, all the USB root hub device uninstall after the computer reboot, and then reinstall the motherboard and power management driver.
2, the use of Ghost method to install the system, the camera, card reader or other USB devices are not properly identified, at this time can be in Lenovo service website download the corresponding model of the operating system of the camera, reader driver, such as the correct installation.
3, in the Device Manager right click on this device, uninstall this device, and then rescan hardware to see if the installation can be completed automatically.