I have bought Lumia 900 which has Windows Phone 7.5 operating system. I am new to Windows phone and I want to connect my phone to my PC which is having OS Windows 7. I have tried connecting my phone but I am not able to synchronize my phone on WiFi with my PC. I do not know what additional things should I do? So please guide me accordingly so that I can sync Sync Windows Phone on WiFiwith Windows 7.