[Arastair]

I don't get what you say, You mean some keys stop working in general or when you press something else, If some keys stop working when you press another key, that's keyboard ghosting and if some keys stop working in general you should change the laptop keyboard, My laptop had some issues like this, some keys (O,P,I,L) stopped working after a while (two years) and started working after half an hour for a couple of minutes then they stopped working and I changed the keyboard