Laptop computers have become an inseparable part of every organization because of their portability, capacity and requiring less space. However, recently, it has been notified in many organizations that these laptop computers are not performing according to the expectations and their performances are not up to the mark. The current paper is about heating of laptop computers and its impact on its functions and performance. Moreover, it analyses the factors that increase the heat of the laptop computers, for instance, HDD, CPU, and GPU. Furthermore, it evaluates the internal cooling system of the laptops along with an external cooling system.