Sometimes no driver fix works. If you’ve tried:

Instead of searching for a specific ISSCBTA installer (which often includes bloated or incompatible software like old versions of BlueSoleil), you can often force Windows to use its own . How To Update Bluetooth Driver On Windows 11 / 10

While many modern devices are "plug-and-play," certain legacy hardware IDs (like USB\VID_1131&PID_1001 ) specifically require this driver to enable wireless connectivity for mice, keyboards, and audio devices. Key Features of the ISSCBTA Driver

your computer completely, then turn it back on. Windows will attempt to reinstall the driver automatically upon startup. 2. Run the Windows Troubleshooter