No bluetooth after installing Windows 8.1

I have installed Windows 8.1 on my laptop. My laptop is Hp 6510b. Windows 8.1 is working fine for me. But the only issue I am facing is that I am unable to see my Bluetooth in Settings. Hence I am unable to transfer files. My android is also not searching my laptop. Is there any solution to this problem?
Please tell me

Regards

Please anyone who can help