Hi
How can we connect bluetooth in computer running windows 7 ?
What is procedure for it ?

I need this for my mobile file to transfer to computer without connecting cable everytime.

Yes, we can connect bluetooth in windows 7, you need to have proper software and proper hardware installed on your computer. Generally you will see "Bluetooth" icon in your control panel and sometimes in your taskbar, just right click it and you will see all things.

If you bluetooth device present in your computer and you are running windows 7 then you can find all bluetooth devices in control panel -> devices and printers.