Bluetooth Peripheral Device driver

Hello, i have dell inspiron N5110 running on windows 7 64bit....in device manager there is a yellow exclamation mark near 'Bluetooth Peripheral Device'. I need driver for it. I tried downloading and installing:

Intel Centrino Advanced-N 6230 Bluetooth Adapter

But then i get message:

This product cannot support downgrading from version 20.90.4 to version 2.1.1.0153

Can anyone help me out?