Download the most recent CSR Bluetooth Driver for Windows from this page.
The refreshed driver is being shared to download free on Windows
CSR Harmony™ is a software solution that adds complete Bluetooth® wireless technology functionality to platforms using the Windows® XP, Windows Vista® or Windows 7® operating systems.
CSR Harmony leverages CSR’s innovative and widely used CSR Synergy™ Bluetooth software and includes additional components and features that provide functionality such as Windows Explorer extensions, VoIP call control, Bluetooth Radio On/Off, stereo headset connection management, transferring video and sharing printers.