According to this site, HP Pavilion g7-2268wm does not have Bluetooth
http://support.hp.com/us-en/document/c03487531
I even checked the Windows drivers for the machine and couldn't find anything.
This post claims that you need Kernel 4.4.0 (Xenial) in order to see your bluetooth card. Freya runs on kernel 3.19, if you want to upgrade run this command.
sudo apt-get install --install-recommends linux-generic-lts-xenial xserver-xorg-core-lts-xenial xserver-xorg-lts-xenial xserver-xorg-video-all-lts-xenial xserver-xorg-input-all-lts-xenial libwayland-egl1-mesa-lts-xenial
Once you're done restart your machine and try again.
