I had a lenovo ideapad z460,when the start button is on, there is a blank window present,sometimes it will not change,sometimes it change and working properly,and suddenly stop during working,what is the problem of my device?please give a solution..

SOURCE: Lenovo IdeaPad Y530 - 40512SU screen is dark

Have you installed the Lenovo EnergyCut drivers? Without it, laptop may not work properly and turns extra hot. Try letting it cool down before you try again.

SOURCE: Bluetooth problem in lenovo 3000 G430 laptop

i am using lenovo 3000 g430, and i am fall in problem about bluetooth,
i am already install xp and vista, but when i install the bluetooth driver
one warning message show me "bluetooth device not detected"
my bluetooth device switch is on but indicator led light still off,
please help me , how can i use bluetooth in this laptop.

SOURCE: Lenovo Ideapad Y510 won't turn on or off

try removing the battery and removing the adaptor press and hold down the power button for 5-10 seconds then let got this will power drain your system board noy turn the system on using the battery only without any adaptors to charge or power the system, try turning the system on if the system turnes on leave it turned on for a couple of hours then conenct your sysem adaptor monitor if the battery light and the battery indicator on the lower right of the screen in windows woll indicate that the system is chargin if it is then I believe everything should be fine the blue indicator is for your system if it is blue then your system is turned on and has power if it turned orange and blnking then the battery will be more likely be almost out of juice or may need charging.