Processor is 100% loaded - software reasons
The computer began to slow down noticeably. One of the most common reasons is that the processor (CPU) is 100% loaded. This processor load is due to software or hardware problems. The main reasons for CPU load are most often software-based. This is either a large number of programs running at the same time, or a virus. In the first case, it is easy to check the assumption.
Press simultaneously on the key combination Ctrl + Alt + Del to call the "Task Manager". The figure at the bottom shows how much CPU is used. In the example below, the load is 50%.
If the processor is 100% loaded, then go to the "Processes" tab. The easiest way out is to find the program that "eat" the most and complete it. First, you need to close all the working files that you worked with in this program.
True, sometimes it is difficult to figure out which program or process needs to be stopped. Therefore, if you are not sure, then consult with a more experienced user.
Hardware reasons for CPU overload
Things are more complicated if the reason for the CPU utilization is not software, but hardware. The most common cause is overheating. If on a recently installed operating system with system processes, the load is 100%, this is probably overheating.
Install the program to check the temperature of the processor. Typically, these utilities are included with motherboards. If it shows a high temperature in the processor area (more than 70 ° C), then everything is clear. This happens because at a high core temperature, the processor tries to be as safe as possible and extend the operating time of the system. Because of this, new processes that can warm it up even more are blocked in this way.
In this case, you need to clean the CPU cooling system. The procedure is much the same as for video cards. Open the computer case and inspect the heatsink installed above the processor. If it is clogged with dust, use a brush to clean it. As an option - a vacuum cleaner (for blowing) or a hairdryer. After this procedure, the temperature in this area should drop.
Overheating of the chipset is less common. This can also be the reason for 100% processor load, although the protective mechanisms of the motherboard already come into play here. Since most motherboards use passive cooling mechanisms, you will have to work on cooling the case. Install at least one 120mm fan and check the chipset temperature. This is done using the same program that checks the temperature in the processor zone.
As you can see, the reasons for 100% CPU utilization can be very different, but you need to start detecting them in any case with software diagnostics.
Finally, we can add that installing a powerful cooler is effective to combat overheating of the processor.
And how to safely overclock a video card - see the review. For those who are "not in the subject" step by step guide
