I have purchased Dell inspiron 15 3511 laptop before 3 months ago. It is not working properly even it has 8 GB RAM. Also I am facing issue of touchpad that not working properly and stuck and freezing. Touchpad is freezing and not giving any response. When I try to operate system by using mouse, it also has same issue. Support team told only to do what they given some steps or tests. But of no use of that. The amount I have paid to buy this laptop is totally waste. After getting such bad experience I don't want to buy Dell products never ever my life. Till date I have not got solution of touchpad issue

Worst performance ever I have seen.