Unable to connect iPhone 4 to Lenovo T410 laptop

Dear readers,
First of all, thanks for opening the topic
Well here we go: I got a new iPhone 4 which I would like to pair with my business lenovo T410 windows 7 laptop: I cant manage to do it.
The iPhone does not find the laptop, but the laptop finds the iPhone.When trying to pair from the laptop, the phone does not react and the mecanism fall in a time out after a while.Tried the same operation with a friends iPhone: no problem. After few seconds the iPhone of my friend shows a request for entering the paraing code: it works. We both have the same ios version (latest).My iPhone paires well with other laptops and other bluetooth devices (till now, its the first trouble I encounter).The phone seems just not to see this laptop in particular.
I tried updating the phone without success. I dont understand where to act to solve this.
Does somebody know where to look at? or how to fix this issue?
Many thanks uys
With my best regards,
Z3R0C00l1500
Lenovo T410 Windows 7 Business purpose