Here we take the steps in Windows 7 as an example - the steps may vary slightly for
Windows XP. You need to install the bluetooth adapter’s driver before you enjoying
using UB400.
3. 1. Install Bluetooth Adapter’s Driver
1. Download the driver at https://www.tp-link.com/download/UB400.html#Driver.
2. Unzip the folder and start the installation by clicking Setup.exe.
3. Select the language and click OK.
4. When the welcome window appears, click Next.