These Realtek driver package version 3.887.905.170530 covers a number of Bluetooth devices that use a USB interface, whether that be physically or internally. To install download the 0001-RTBT_887.887.905.0530.2017_2.00.262_F0200_LB.zip and extract to a location that you can easily access and run the setup.exe as an administrator.
This package version 3.887.905.170530 contains a number of different Bluetooth driver versions.
Win10: x64: 1.4.887.2011 x86: 1.4.887.3011
Win8.1: x64: 1.3.887.2001 x86: 1.3.887.3001
Win7: x64: 1.3.905.4002 x86: 1.3.905.1002
