Drivers are not required for the UGREEN Bluetooth 5.4 Adapter CM748 (35058) at this time. This Bluetooth dongle uses the built-in drivers that are included with Windows 11 and Windows 10. The use of the Barrot chipset is the reason for a lack of drivers, as it was designed to be a driver free experience for the user. If any drivers do become available we will upload them when they become public. If the dongle isn’t work there is a good chance that there is a conflict with a possible existing Bluetooth device that may be built-in to your computer, especially in the case of laptops. This will need to be disabled in the device manager first to resolve any conflicts.