On your Windows machine, you have to check if your embedded Bluetooth chipset supports the Bluetooth low energy (BLE). To check it, open the
Device Manager and expand the
Right-click on your Bluetooth adapter, click
Properties and go to
Click the drop-down under
Property and select the option:
Bluetooth radio supports Low Energy Peripheral Role. If the value is set to
true, then your Bluetooth device manages BLE and can be used with Proximity. If the Value is set to
false, then you can not use Proximity with that computer.
All smartphone with Bluetooth 4.0 should support BLE. Have a look on your phone model and Bluetooth specifications for your phone to check if BLE is managed by your device.