I have a sony KDL-42W653A and I have a HP laptop pavilian g6 running windows 8. On the laptop, there is an option to project my laptops display to another display and when I click on display, i gives me an option to add a wiresless display. When I click on that, BRAVIA KDL-42W632A comes up as an option and when I click on it, a message says: Enter the WPS Pin for your television. 

So how do I find the WPS pin that the laptop is asking for?

Thanks.