Hello I have been using this laptop for last 2 years its working is average this laptop main problem is we couldnt work for longer hours, during working this lap top suddenly changes the screen upside down that means inverted and we should wait for longer hours to reset to the normal screen .And another problem of this laptop is to on the laptop, after working for longer hours we shut down the laptop and when we on the computer it doesnt work after trying for two or three times it become on .another problem is the speakers are, nt good but music is excellent by keeping head phones.this lap top becomes very heat after working for longer hours