How to Change the Bluetooth Stack
- 1). Go to "Start > Control Panel > Add/Remove Programs."
- 2). Scroll down until you find the name of the Bluetooth device you want to update. Click on it and hit "Change/Remove Program" at the top of the screen. It will tell you the technical name of the product, which is "UGX."
- 3). Go to "Control Panel > System > System Properties > Device Manager."
- 4). Find the "UGX" on the list of devices and select "Update Device Driver."
- 5). Choose "Show all hardware available."
- 6). Select "Bluetooth > Bluetooth Adapter." It will automatically install the latest drivers.
- 7). Restart your PC and try to use the Bluetooth device again.
Source...