Windows 10: .NET Runtime Optimization Service runs forever with high CPU usage

O/S: Windows 10 version 21H2 64-bitO/S Build: 19044.1645CPU: i7-7700HQ 2.8ghzRAM: 16gbI notice this 'background process' appears in my task manager randomly while using my laptop. While gaming I notice the performance goes from buttery smooth to 0.5-1 sec stutters every 10-20 seconds when this process starts running. I don't know what triggers it, but this process can run multiple times I've seen up to 6 myself. I've tried letting it run for 18 hrs so far without ending the process, but it remains running as per the task manager. The CPU usage is erratic but it's a noticeable difference th

:)

 

Prevent .NET Runtime Optimization Service from running on battery?

When I opened my laptop this morning, it had rebooted itself (after installing updates). Now the .NET Runtime Optimization Service is using quite a bit of CPU while the computer is on battery. I had the laptop
plugged in overnight but 30% of my battery is gone after less than an hour of usage, which is not the usual situation.

My computer wasn't idle while it was doing this, so I assume its compiling high-priority assemblies after a .Net Framework update from
this article.

I checked the windows update history, and it had installed a monthly cumulative update overnight while plugged in.

I'm wondering, is there any way to ask Windows to defer these tasks until the laptop is plugged in, or to do it before I unplug the laptop?

I wish windows would run the high-priority .net optimisation as part of the overnight install process instead of waiting for me to start using the laptop on battery.

 

Prevent .NET Runtime Optimization Service from running on battery?

When I opened my laptop this morning, it had rebooted itself (after installing updates). Now the .NET Runtime Optimization Service (ngen?) is using quite a bit of CPU while the computer is on battery. I'm wondering, is there any way to ask Windows to defer these tasks until the laptop is plugged in? I had the laptop plugged in overnight but 30% of my battery is gone after less than an hour of usage, which is not the usual situation.

My computer wasn't idle while it was doing this, so I assume its compiling high-priority assemblies after a .Net Framework update from this article.

I checked the windows update history, and it had installed a cumulative update overnight while plugged in. (https://support.microsoft.com/en-ie/help/4038788/windows-10-update-kb4038788). I wish windows would run .net optimisation as part of that process instead of waiting for me to start using the laptop on battery.

 

Runtime Broker high CPU usage

I am running Windows 10 Pro (Version 1511 for x64, update KB3149135) and had problems with Runtime Broker.exe using anywhere from 30% to 90% of my CPU. Disabling hints and removing OneDrive did not help me, but I found the advice in this article helpful.
I used the PowerShell commands as admin and uninstalled all of the suggested apps save the windows store. Not sure which one finally did it but I don't really care as long as I'm not running at 50 degrees Celsius constantly.

Here is the URL: How To - Fix the Runtime Broker High CPU Usage Error