This weekend i got my hand on this model Lenovo 3000 Y400 to fix the OS. First time i look at it, no wonder, it is an old model (without looking at the specification), additionally it use windows vista. During the windows XP installation, the DVD not work properly and cause incomplete installation which lead to driver installation failure. SPECS: Then i look at the specs -1.0GB ram and CORE DUO processor .then this make my job easy, installed windows 7. (note: dun judge the notebook by its cover) WINDOWS 7 DRIVER: All of the driver installed automatically except: 1. 3 BASE SYSTEM DEVICE : RICOH CARD READER 2. UNKNOWN DEVICE : refer to ENERGY CUT 1. RICOH CARD READER: Download this driver: Download (install by double click at it) 2. ENERGY CUT Download this driver Download (install by right click and select run as admin) OTHER DRIVERS: I don't have to install other driver since it's automatically installed. But if incase you need it: 1. AUDIO: ADI audio driver: Download 1. Right...