Go to Device Manager , find your Bluetooth radio, right-click, and select "Uninstall Device." Check the box to "Delete the driver software for this device."
This article provides a guide on downloading and installing this driver, including sources frequently searched on platforms like Yahoo. What is CSR Harmony 2.1.63.0? Csr Harmony Wireless Software Stack 2.1.63.0 Download Yahoo
Many old Yahoo Groups links point to now-defunct f1.grp.yahoofs.com or briefcase.yahoo.com domains. Do click them; they lead to 404 or redirect chains. Instead, use the direct file name in a modern search engine with filetype:exe or intitle:index.of . Go to Device Manager , find your Bluetooth
CSR was acquired by Qualcomm in 2015. Following this, the standalone Harmony stack was largely deprecated in favor of integrated Windows drivers and Qualcomm's newer connectivity platforms. Do click them; they lead to 404 or redirect chains
Windows XP, Vista, and Windows 7 (both 32-bit and 64-bit).