A fix for the yellow exclamation mark next to Bluetooth Peripheral Device is
1- go to device manager.
2- right click on "Bluetooth Peripheral Device"
3- select "Update Driver Software...".
4- choose "Browse my computer for driver software".
5- choose "Let me pick from a list of device drivers on my computer".
6- select "Ports (COM & LPT)".
7- select "Microsoft" at "Manufacturer" list.
8- finally select "Standard Serial over Bluetooth link"
you may be asked to continue which you should do so.
