A computer can overheat if it is not maintained well. The heat that comes from active electrical components (i.e. the hardware inside your PC) can cause damage to nearby components. To prevent overheating from destroying your computer, you should pay attention to the following issues:
Move it to a cooler room
The first thing to do is to see if the computer’s problems are really being caused by overheated components. It helps to move the computer into a cooler room and run it in a well-ventilated area where air can move around it. Sometimes, overheating may be caused by a lack of space or hot room temperatures. If your computer doesn’t experience errors in a cooler room, then it’s clearly overheating that is causing the problem.
Open it up and inspect the individual hardware components
However, if your computer continues to experience errors, then you need to troubleshoot it further in order to determine that overheating is causing the problem. Open up your computer and dust it out. If possible, leave the case open while running and run a fan over the components. Dust always builds up on electrical components, and this dust can suffocate air flow. Meanwhile, a large fan will help circulate cool air through the system and remove hot air.
To ensure your computer’s problem is the result of overheating, check the hardware components inside. Parts like the CPU, hard drive, graphics card and power supply must all be carefully inspected. In addition to dust buildup, each of these components may have fans of their own. If these fans are not spinning when your computer is turned on, then this can lead to serious overheating problems. Since these components use up a significant amount of your computer’s electrical supply, they are particularly prone to overheating.

Optimize heat flow around your hardware
To prevent overheating, you may want to rearrange the hardware inside your PC case. Bundling electrical wires together can lead to enhanced air flow throughout your case, and something as simple as moving the video card down to a lower slow may create enough space between two components to allow more cooler air to slip through. Ultimately, you want your hardware components to be directly behind your case fans to ensure optimal air flow.
Install more case fans
You may also want to replace the cooling fans on your case with a more efficient cooling system. You may want to buy a new case fan, or install extra case fans. Or, if you want your computer to run as cool as possible, then you could install a liquid cooling system. This is one of the most effective ways to reduce overheating problems in your PC.
Still having computer problems?
If your computer continues to experience errors after performing all of these steps, then it is likely the result of some other problem than overheating. Perform a scan with PC optimization software like PC Cleaner Pro 2012 in order to solve some of the most common computer problems. If that doesn’t work, then you may have to take your computer into a repair shop to be fixed.