Hi everybody. I've already made Windows 7 Home Premium upgrade from Windows Vista Home Premium. I made it without uninstalling old system(overlay). I have installed all new drivers but not everythings works correctly. Firstly switch of WLAN in front of board doesn't works. I can't turn on WiFi. Next Lenovo Care Program doesn't run. In old system sometimes the switch of WLAN didn't work, then I was using Lenovo Care to run WLAN and then everything was working correctly. Now any of this doesn't work. What is more when I am installing the bluetooth driver there are statement which told me that there is no bluetooth device in this note book. Please Help and Thank You.