estined not be easy to update, such as CPU, display card and some core components. These two things should be decided first when you decided to buy, as later there’s no need to update. Besides, if after changing your CPU, your quality warrant period would abate completely. You will lose the repair warrant service for your laptop, which increases many risks. So, personally speaking, I don’t suggest you changing your CPU, which would only bring you more troubles.
3): Laptop’s basic rule is that the kernel parts are unchangeable. But there’s no such a problem for desktop computer, this is because it’s worthless to update some components of laptop. Remember not to update the parts which are probably not easy to update, because for laptops, it’s quite difficult to change some big important parts, and display card is quite a good example. Generally speaking, display card is integrated on the motherboard, and it’s quite difficult to change for it. Even it could be changed; the price would exceed 50% of your entire laptop price. Therefore, the best way for you is to maintain your laptop as much as you could. It’s better to arrange your budget on the place which needs update more properly.