This is normal if your cpu utilization varies between 0% and 75%. But if it has been above 90%, even 99.9% or 100%, the reasons are as follows:
1. Anti-virus software caused a failure. As the new versions of KV, Jinshan and Rising have all added random monitoring to web pages, plug-ins and emails, the system burden has undoubtedly increased.
2. The driver is not certified, resulting in CPU resources occupying 65,438+0,000%, and a large number of beta drivers are flooding on the Internet, which makes it difficult to find the cause of the failure.
3. Viruses and Trojans cause a large number of worms to replicate quickly in the system, which leads to a high CPU resource utilization rate.
Central processing unit (CPU), as the operation and control core of computer system, is the final execution unit of information processing and program running. Since its birth, CPU has made great progress in logical structure, operating efficiency and function expansion.