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I keep hearing my PC's fans slightly speeding up and seeing "System" running in the processes list at under 20% CPU load:

Windows 10: System process constantly running in background

I assume the task is throttled in order to be as inconvenient as possible.

But what the hugg is it doing, why does it need to run this every day?

I never noticed similar stuff in MacOS or Linux. I also tried to disable telemetry 'features', but that doesn't seem to be it. It certainly feels like some bloatware Microsoft would put in an OS, but I can't figure out what exactly and how to disable it if I don't need it.

snayob
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Jean Monet
  • 101

1 Answers1

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In a properly operating machine, "system" will not use very much CPU (< 3% over time).

If it is an issue, look at this Microsoft Article

Fixes for System High CPU

Key points:

  1. Update your drivers and BIOS/UEFI firmware from PC or motherboard maker's Support Downloads web page, using the full model number, Serial Number or Dell Service Tag on sticker. Compare the latest drivers available for download with the ones presently installed in Device Manager reached by right clicking the Start button. Make sure you have the latest BIOS or UEFI firmware, Chipset, Display (Video), Sound, USB3, Bluetooth, Network and all other drivers, or else download and install the latest now.

Updating drivers from the Device Manager or Windows Update is rarely enough. The most basic thing we need to learn to maintain a PC is keep the latest manufacturer's drivers installed from their Support Downloads web page.

  1. If nothing else works then do a Repair Install, by installing Media Creation Tool,

https://www.microsoft.com/en-us/software-download/windows10

open tool and choose to Upgrade Now. This reinstalls Windows while keeping files, programs and most settings in place, is the most stable method to advance to the latest version, and solves most problems

Another tool for locating processes that use CPU is SysInternals Process Explorer. I use this and it is very helpful