I have a hp pavilion dv7 custom build. Originally came with windows 7 installed with HP's manufactured software/driver bundle. It supported bluetooth and was able to connect devices.
A while ago, I bought a new solid state drive and planned to do an upgrade to windows 8 when it first was released. Just so happened to get the FBI Warning virus the day I planned to upgrade, plus I found out some main programs wern't supported in win8 at that time so I did a fresh install on the Solid State Drive. To boost performance I ran a bundled software removal utility that took off HP support, restore, fingerprint reader, bluetooth driver, etc.
Now I don't have the bluetooth option in the win8: PC Settings : Wireless options. Also, no bluetooth or bluetooth radio or anything bt related in the device manager. So i guess I'm missing the enumerator and can't do a restore because it's fresh. I tried installing HP assistant again but it just locks up when I try to run an hp update (50mb down, 10mb up connection). Confused how to restore my internal Bluetooth capability without HP assistant, restores, and no icon in device manager. Also no icon in mobile manger anymore. Looked all over for a solution but no luck. Worst case I could buy an usb adapter but I have all of my usb ports in use already.
I was able to install an intel bluetooth driver and now bluetooth shows up in windows 8 PC Settings but is grayed out and still nothing in device manager or mobility center