If your Bluetooth devices do not work correctly on a computer that is running Windows 7 or Windows Server 2008 R2, then you might want to apply this hotfix from Microsoft and see if it helps you.

If you have a computer that is running Windows 7 or Windows Server 2008 R2 and after installing a Bluetooth adapter on the computer, you find that:
- The Bluetooth Support Service cannot start after you restart the computer. Additionally, Bluetooth devices do not work correctly.
- When you search for Bluetooth devices in Control Panel, the search operation may not finish. Additionally, you may notice that the progress bar seems to never finish and the pointer remains at an hourglass
Then applying this Fix308817 may help you.
Visit KB980396 for details.
This issue occurs because of a problem in the PnP layer.
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