er 20℃ indoor temperature, so your data is not that overheated. If the indoor temperature reaches about 30℃, the temperature would also rise, please remember, indoor temperature plays a quite important role in a laptop’s overall temperature.
4): My opinion is that your laptop is not overheated; do you know what is overheating? It means when your laptop’s essential part reaches a certain temperature, certain extent failure would happen to your laptop, then this is called laptop overheating. While generally, most overheating is because of thermal module. Usually, there’s dust covered around the fan, which lowers fan’s thermal performance, finally cannot help CPU lower temperature. After the situation gets worse, CPU reaches a maximum value. At this moment, CPU would auto send a thermal shutdown signal, and this happens when temperature reaches a certain extent, and CPU would control the computer to shut down. This is a self-protection, so when you find that your laptop shuts down abnormally, then probably the problem has already happened. And you laptop is suffering a overheating problem.
Hope this could help!