Thank the Lord and Hallelujah! I went to the device manager and disabled first the Microsoft blue tooth adapter--no difference. Than I disabled the generic blue tooth adapter and immediately the sound STOPPED!
Can't thank you enough Rheese Davis for the peace and quiet!
Thank goodness I entered this response--IT replaced my hard drive and upgraded me to Windows 10. The noise returned! I found this post string, and was able to change the settings on the Intel Bluetooth Adapter to "allow PC to turn off the adapter to save power". Again, the noise and constantly spinning hard drive stopped. Thank goodness!