Windows 10: High & Very High Power usage from "System" service at idle

i been having this problem for a while and i tried alot of things, even contacting microsoft support live chat about it,first of all, my laptop is a Lenovo Ideapad L340-15IRH Gaming, with i7 9750H, Gtx 1650 Mobile, 16GB ram, 256GB NVMe + 1TB HDDas the title says, system service is always on high to very high power usage on idle while nothing or basic appsMicrosoft edge, office, Moodle running in the background, i have tried multiple fixes,i upgraded to windows 11 in a fresh install, battery life only got worseso i downgraded with a fresh install of windows 10, latest updates, installed my ap

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System Idle Process High cpu usage

What are the processes that cause HIGH CPU usage?

 

High Idle power consumption

Hi,

A laptop in idle still drains the battery. It can be one of the lists below are the reasons why your discharging faster.

• The power plan is on High-Performance. It consumes more energy because it maximizes the computer's usage. Toggle it as Balanced by going to Control Panel > System and Security > Power Options.

• Too many background applications running. We can check this by going to Windows Settings > System > Battery saver > Battery usage by app. You can set adjust the settings of your battery there as well. Also, please follow the tips on the window on how you
  can manage your battery.
• You use the second graphics card as your display to an external monitor.
• Using sleep mode instead of hibernate mode. Hibernate mode is advisable to use when stepping away from the device for very long.

In addition to this, you can run the automatic troubleshooter to
find and fix problems with your computer's power settings to conserve power and extend battery life.

Feel free to post back if you need further help.

 

System Idle Process High cpu usage

I only have chrome open and my System idle is very low which is causing high cpu usage