For most Bluetooth dongles, Windows 10/11 will auto-install a working driver. Go to .
If the official link does not provide the specific SSDBT819 file, use these reliable methods to get the device working: Windows Update (Best for Windows 10/11) techcom ssdbt819 driver download link
Point to the folder where you downloaded or extracted the Tech-Com driver files. For most Bluetooth dongles, Windows 10/11 will auto-install