For Windows 7 please follow the directions here:
For Windows 8 please follow the directions here:
For windows 10 please follow the directions here:
If your computer does not connect after following previous steps make sure that your computer's bluetooth driver is updated. To update your drivers in Windows 7 follow the guide here:
If your computer still cannot connect to BTunes make sure that the bluetooth service is running on your computer.
a) Click Start, type services.msc in the Search box and press Enter.
b) Right-click the Bluetooth support service, and then Click Properties.
Make sure that the service status is set to "started" and service type is set to "automatic".