Siyoteam Bluetooth Driver
Windows 11 has stricter driver signature requirements. Uninstall the old driver and install the latest chipset driver from Realtek or CSR specifically compiled for Windows 11.
If Windows Update fails, you must install the software stack based on the chipset vendor you identified in Step 1. siyoteam bluetooth driver
: In many cases, the Intel Wireless Bluetooth Driver or Microsoft Support provides a universal stack that works with these dongles. 3. Step-by-Step Installation Guide Windows 11 has stricter driver signature requirements