I have purcahsed this lenovo lap top on last month but right now I am facing sevaral problems frequently it stops working. Not getting switched off by on-off button or by entering ctrl-alt-del option. Battery is getting heated up. I have to switch it off by removing the battery tray.now key pad is not working. I have to use the external mouse for navigation.when I use chrome browser even mouse navigation is not proper but internet explorer browser mouse is working. When I complained to your local dealer vb system they are saying it cant be replaced as per thier policy and they repaired it and gave it back now again problem not solved never buy from lenovo