What do we do if the temperature outside is to high? We need to cool down and for that we often use air conditioning. Imagine yourself being a computer that process hundred thousands operation for hour. Compare it to the high heat outside and  running. How would you feel? Probably a bit overheated right? This is why cooling system in computers are so important (of course if you care about you hardware). This task is especially hard when it comes to laptop cooling system because everything that is in stationary computer had been compressed to a small box what limits the possibility of effective cooling. Every laptop have the same tendency to overheat. Sometime when processor and hard drive is very busy for many hours it may cause some trouble, because if computer parts are hot for a long time that you can be sure that they life limit is getting shorter. Some of the reasons that makes the temperature higher are not laying inside the parts but in the computer system. There are a lot of viruses that can makes your computer busy without a reason and bring your computer to the temperature limit. This is why virus and anti spam protection is so important. We should never forget to install such elementary tools like  web filter and Spam filter .