Respuesta a "Why my laptop batterie does not work?"HP batteries are one of the worsest on the market ... when u dont need a battery just take it out ,that way you will extend its life , and ur notebook will have better performances ...
Respuesta a "Why is my laptop overheating?"Probably because of all the dust that has accumulated over the time on the fan ... I had the same problem ... its bets to take it to the service shop where they will air blast the fan... the price is not significant