bthprops.cpl is a Bluetooth Control Panel Applet
from Microsoft Corporation
belonging to the Microsoft® Windows® Operating System
Non-system processes like bthprops.cpl originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues.