How does the Windows 8 system Bluetooth peripheral display the exclamation mark?

Scope:

Windows 8 Consumer Preview

Knowledge Point Analysis:

In <quo;Device Manager There are uninstalled<quo; Bluetooth Peripheral device” displays an exclamation point or question mark.

Operation steps:

1. Locate <;Devices & Printers" in the Control Panel">;

2. Find <;Device" Right click on the Bluetooth device that has been linked. Right click <;Properties>;

3. Select "Hardware" to see the "Bluetooth Peripherals" that are not installed.

4. Select “Services” to see the services required by the device. The un-installed Bluetooth peripherals are caused by the failure to install these services. You can find the Bluetooth driver of the device after installation. Or use the method in the figure below to cancel the service of some functions, and then no longer appear in the device manager.