In fact, the system idle process is just a thread that consumes CPU cycles, and it will not be used. On the other hand, a virus also can cause high CPU usage. On the one hand, an annoying antivirus will cause high CPU usage. There Is an Annoying Antivirus or a Virus However, sometimes it will go out of control.Ĥ. The WMI Provider Host process is part of Windows, which helps organize monitor and troubleshoot large numbers of systems on the network. Sometimes this process is associated with malware, but it is a legal system-critical Windows process. When you open the Task Manager, you might have noticed that the svchost.exe (netscvs) process causes high memory or CPU usage. As you install the programs constantly, there will be more and more programs on your PC and it will cause high CPU usage. Since Windows itself needs some background processes to run, many background processes will run on the computer at the same time. Reasons for High CPU UsageĪ background process is a program that runs on a PC including those not opened in the window. Why is CPU usage high? Here are 5 main reasons for this situation. Then, the speed of your computer will become slower. When computers perform computationally intensive tasks such as running games, they tend to use close to 100% of the CPU. If the CPU usage is about 100%, it means that your computer is trying to perform more work than it can.

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