High CPU usage on Windows Explorer

1157120 pts.
Windows 10
Windows Explorer
My PC is currently running Windows 10. In Windows Explorer, I keep seeing very high CPU usage. Even when I create a basic new folder, the CPU usage is huge. I haven't installed anything lately. Can anyone help?

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If this is occurring right after starting up your system, it may be possible that you system is doing some automatic application updates, Windows updates, a virus scan or some other background function.. 

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  • carlosdl
    What do you see in the task manager as using more CPU?

    Windows 10 has many processes that use lots of CPU and disk, such as the undesirable "compatibility telemetry", but it would be a good idea to confirm that the cause of high CPU usage is actually legit Windows processes.

    A full scan with a good antimalware software should be performed as well.
    85,865 pointsBadges:
  • TheRealRaven
    First, you need to say what you mean by "very high CPU usage". To you, 10% might be high while I might not care unless it constantly exceeds 90%. Second, when you say it's if you "create a basic new folder", does that mean it's not high at other times? Finally, is it actually a problem for you or are you only concerned because it seems unusual?

    A high CPU in any task might appear at any time. It might be normal or not. Part of the difficulty is that every process uses 100% during the times that it is actually executing instructions.

    The usage only shows as a smaller amount because CPU is passed around from process-to-process, each using 100% during its allotted time-slice and 0% during the time-slices of all other processes. The number that is shown to you is an average over however many time-slices go by between screen updates. (Simplified, but it describes a basic characteristic of any multi-tasking system.)

    If no other processes have a current need for CPU, they may give up time-slices when their turns come around. Or any process might end its slice of usage early if an interrupt indicates that the process must wait.

    A lot of factors can come into this. The short story is simply that "high (huge) CPU" for any process isn't enough by itself to indicate a problem. (And if there is no problem, there's nothing to fix.)

    Please expand your question to describe how it is a problem to you as well as to expand on the environment -- what other apps are running, the durations of high usage, the usage percentages that range up/down and other elements that might be relevant.

    36,880 pointsBadges:

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