Unknown device

Hello everyone.
It has been a few days since I have an unknown device on my computer. Here are the details of what I could obtain.

I would like to know what it is. If I need to reinstall my system. Thanks in advance to everyone

Location: on Microsoft ACPI-compliant Embedded Controller
The drivers for this device are not installed. (Code 28)
Value:ACPI\VEN_KB9X&DEV_RADIOBTN
ACPI\KB9XRADIOBTN
*KB9XRADIOBTN
GUID bus type:{d7b46895-001a-4942-891f-a7d46610a843}

PC configuration:

Operating system
Windows 8 ?(X64)?
Installation date: 22/05/2013

Processor
Intel Core i7 3630QM Clocked at 2.40 GHz
Number of cores: 4 physical(s), 8 logical(s)
Socket: Socket 988B rPGA

Chipset
North bridge: Intel Ivy Bridge
Revision ID: 09
South bridge: Intel HM77
Revision ID: 04

Memory
16 GB of total DDR3 memory
Memory timings: 9.0 clocks-9 clocks-9 clocks-24 clocks-2 TT
4 GB Hyundai Electronics stick
Maximum frequency: 667 MHz
Bandwidth: PC3-10700
4 GB Hyundai Electronics stick
Maximum frequency: 667 MHz
Bandwidth: PC3-10700
4 GB Hyundai Electronics stick
Maximum frequency: 667 MHz
Bandwidth: PC3-10700
4 GB Hyundai Electronics stick
Maximum frequency: 667 MHz
Bandwidth: PC3-10700

Graphics Card
Intel(R) HD Graphics 4000
Installed DirectX version: 11.0
NVIDIA GeForce GTX 670MX
Installed DirectX version: 11.0
GPU frequency: 324 MHz
GPU memory frequency: 324 MHz

Hard Drive
HITACHIHTS727575A9E364 hard drive of 698.64 Go SATA II
Firmware: JF4ZD0H0
SATA version: SATA Rev 2.6
Serial number: J3740084H7PJRE
HDD temperature: 37 °C
Operating time: 2349 hours

Network
Microsoft Wi-Fi Direct Virtual Adapter
Adapter type: IEEE 802.11 wireless
Bluetooth Device (Personal Area Network)
Adapter type: ethernet
Intel Corporation Centrino Wireless-N 2230
Adapter type: IEEE 802.11 wireless
Software Loopback Interface 1
Adapter type: Loopback

Multimedia cards
Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller

Screen(s)
Generic PnP Monitor
Manufacturer: AUO
Maximum resolution: 1600 x 900
Screen size: 17.1" (38 cm x 21 cm)
Manufacture date: 07/01/2009
Aspect ratio: 16:9
Video input type: Digital Signal