Torgeek
High CPU usage can be indicative of several different problems. If a program is eating up your entire processor, there's a good chance that it's not behaving properly. A maxed-out CPU is also a sign of a virus or adware infection, which should be addressed immediately.
Why is my CPU usage at 100%?
If the CPU usage is around 100%, this means that your computer is trying to do more work than it has the capacity for. This is usually OK, but it means that programs may slow down a little. Computers tend to use close to 100% of the CPU when they are doing computationally-intensive things like running games.
Is it normal to have 90% CPU usage?
If you are currently not running any additional programs, your CPU usage should be anywhere between 1% and 10% just through Windows processes alone. Anything higher than that on an idle PC means that something might be wrong.
Is 70% CPU usage high?
If the System Idle Process is high, around 70% - 90%, in the CPU column of the Task Manager. And, you're not running any programs or perhaps just a few. It is normal for it to be high because the processor is not doing much at the moment.
