lenovo laptop making noises and then restarting?

i have a lenovo 3000 n200 notebook. recently when i turn it on it starts making noises after sometime and then stops working and retarting after that. its an error called bue screen. also my “l” key is not working properly. i have used it for three months only and is in warranty but there is no lenovo deaer in pakistan

I have the same laptop you have , probably you need to install software from lenovo website to deal with ” I ” key

And about the noise try to update the BIOS ( also there’s update on the website )

Hope this help