Which action will NOT help to cool down an overheating system?

Removing the computer case may seem like a potential solution to an overheating issue, but it does not contribute to effectively cooling down the system. In fact, in many situations, this action can lead to increased temperatures rather than cooling the components. When the case is removed, the airflow designed to direct cool air over vital components might be disrupted, leading to potential hot spots. Additionally, removing the case exposes internal components to dust and environmental heat, which can further exacerbate an overheating issue.

In contrast, installing additional fans improves airflow and enhances the system's cooling capabilities by moving more air through the case. Reapplying thermal paste ensures that the CPU and GPU have optimal thermal conductivity with their heat sinks, which is crucial for effective heat dissipation. Cleaning dust from components is essential for maintaining airflow and preventing overheating, as dust build-up can block vents and impede the effectiveness of cooling solutions. Each of these actions directly addresses thermal management, while removing the case undermines it.