: Sometimes the driver is fine, but the "Bluetooth Support Service" isn't running. You can fix this by typing services.msc in the Run box (Win+R), finding Bluetooth Support Service , and setting its Startup type to Automatic .

Before downloading any drivers, it is crucial to understand what Bluetooth chip is inside your ASUS X55C. ASUS, like many manufacturers, sources components from different suppliers to meet production demands. The X55C model typically shipped with one of two Bluetooth modules:

A: Possibly, but with even more issues. Windows 11 has stricter driver signing. Use the USB dongle approach for Windows 11.

ASUS recommends updating the ATKPackage (Version V1.0.0039 or later) before installing other drivers on Windows 10 to ensure hotkeys and hardware switches work correctly.