https://www.drivereasy.com/knowledge/high-cpu-usage-windows-10-solved/

Are You Running at 99%?

Fr. Joel Church meets World, The Loving Life

My office computers run Windows 10 (I have two offices, therefore two office computers). Recently one of my computers slowed down dramatically. A look at the Task Manager showed that the computer was using 99% of its CPU. That means the computer is thinking really hard. This should only happen briefly when I’m opening a big application or doing a job …