I have taken mine and others apart before to spray them, if I spray them I take them completely apart, you only need to expose the motherboard to get to the jumper or battery. There is about 20 screws and youre done, just concentrate. If you can open a Desktop computer you can open a laptop. Both have CPU, RAM, HDD, Screen, and so on, with a laptop its just all more interconnected and a bit smaller. Try to see how far you come, the laptop wont do you any good on the shelf more than it would do after atleast an attempt.