Based on the information you provided I believe your operating system is Windows* 7. Please uninstall your drivers and install the latest versions below:
https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=23491
https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=23451
It would be helpful to know if the Bluetooth* service was working previously and if so, what changed before the issue started to happen.