how to activate bluetooth using wireless switch on windows 8.1 for dell inspiron 3521

Hi, 

when i try to install dell WLAN and Bluetooth driver, it appears " activate bluetooth using wireless switch".

I was told by a member of dell's social media team to download the BIOS and wireless card driver which I did, but when installing the wireless card driver it says activate bluetooth using wireless switch.

Can you please help me how to solve this problem. Its quite urgent please.

Thanks