Bluetooth not working do not HP Pavilion g6-2120nr with windows 8.1

I have a HP Pavilion 2120nr g6.  Since the Windows 8.1 update my Atheros bluetooth stops being recognized and I can usually get it going again with a restart but now nothing works.  whenever this happens, in "Device Manager" I get an error "unknown USB device (device request Discriptor Failed)" also, there is nothing in the device for bluetooth device manager.  I tried to remove the "unkknown" device, I tried to reinstall the drivers.  I can't "Uninstall" the bluetooth device because it does not appear! my wifi works perfectly.  Help!

Problem solved.  I inserted 3 usb thumb drives and then "deleted device" by clicking on the icon in the taskbar. Rebooted the system and the problem was gone.  My hypothesis can only be remove a USB should have hung up in the USB device.

Tags: Notebooks

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