why does opening task manager lower cpu temp

Description

https://answers.microsoft.com/en-us/windows/forum/windows_10-performance/cpu-at-100-that-goes-away-when-opening-task/94e9a97c-8364-4a1e-a24a-dd090acbd316

CPU at 100% that goes away when opening Task Manager …
https://answers.microsoft.com/en-us/windows/forum/windows_10-performance/cpu-at-100-that-goes-away-when-opening-task/94e9a97c-8364-4a1e-a24a-dd090acbd316
Once I open Task Manager to see what is causing the problem, I will see a dramatic drop in my CPU usage. Below is a screenshot. This seems very odd to me that opening the Task Manager would decrease CPU usage. For a short bit I noticed that System Interrupts was at the top of the Processes organized by CPU usage in this instance.

https://forums.malwarebytes.com/topic/252362-cpu-usage-always-at-70-until-task-manager-is-open/

CPU Usage always at 70%+ until task manager is open …
https://forums.malwarebytes.com/topic/252362-cpu-usage-always-at-70-until-task-manager-is-open/
When you launch Task Manager it will always start by showing 100% CPU usage – until it can monitor just what is actually being used, which only takes a second or so. This ties in with what the OP is reporting. Nothing is actually using 100% CPU, it’s just a number that is being shown while it works out what your CPU usage is.

https://www.intel.com/content/www/us/en/gaming/resources/how-to-fix-high-cpu-usage.html

How to Fix High CPU Usage – Intel
https://www.intel.com/content/www/us/en/gaming/resources/how-to-fix-high-cpu-usage.html
If you have a second monitor, you can also just drag the Task Manager window over there. Once you’re in the Task Manager, click the Processes tab at the top. Click More details at the bottom of this tab to reveal background Windows processes. Look for the CPU column near the top of the Processes tab and click it to order by CPU usage:

https://www.quora.com/Why-does-the-task-manager-in-Windows-10-show-100-CPU-usage-when-closed-but-it-decreases-to-4-5-when-I-open-task-manager-How-do-I-fix-it?share=1

Why does the task manager in Windows 10 show 100 CPU usage …
https://www.quora.com/Why-does-the-task-manager-in-Windows-10-show-100-CPU-usage-when-closed-but-it-decreases-to-4-5-when-I-open-task-manager-How-do-I-fix-it?share=1
Probably what happens is that you do not get to open Task Manager fully until the CPU load has gone down in the first place. Prime candidates for this are virus scanner software which run at low priority, but often eat up huge amounts of memory, leading to virtual memory allocation which takes CPU time to free up when switching between programs.

https://www.tenforums.com/performance-maintenance/79878-high-cpu-usage-fan-noise-drop-drastically-opening-task-manager.html

High CPU Usage (& fan noise) Drop Drastically on Opening …
https://www.tenforums.com/performance-maintenance/79878-high-cpu-usage-fan-noise-drop-drastically-opening-task-manager.html
It turned out that the sudden drop in CPU usage right after opening the task manager is only because of the momentary spike in CPU usage for opening the task manager, no other reason. As for the sound of the fan, after debugging my computer, now its sound remains consistent even after opening the task manager.

https://linustechtips.com/topic/1150729-windows-10-task-manager-shows-higher-cpu-usage-when-opened/

Windows 10 Task Manager shows higher cpu usage when opened …
https://linustechtips.com/topic/1150729-windows-10-task-manager-shows-higher-cpu-usage-when-opened/
For task manager, I just wanted to add, that like FPS count in games, it cost performance when you have it open. It needs CPU power to do get (and display) the information on processes. That is why you also have speed control under the View menu. So when Task Manager is open the CPU will never really show it is 0%.

https://fossbytes.com/windows-10-cpu-temp-fix-monitor-the-heat-issue/

Windows 10 CPU Temperature: Fix And Monitor The Heat Issue

Windows 10 CPU Temperature: Fix And Monitor The Heat Issue

Windows 10 users complain of CPU overheating problem and high Windows 10 CPU temp issue. Know the steps on how to fix and monitor the heat issue in Win 10.

https://www.wpxbox.com/how-to-monitor-cpu-temperature-in-windows-10/

How to Monitor CPU temperature in Windows 10

How to Monitor CPU temperature in Windows 11

Does Windows 10 have a built-in temperature monitor? Yes, but partially, Windows 10’s Task Manager can monitor the GPU’s temperature but not the CPU’s. You have to either check that in the BIOS or use a third party application. I hope this post was easy to follow, and you were able to monitor the CPU Temperature in Windows 10.

https://silicophilic.com/cpu-temperature-high-how-to-fix/

CPU Temperature High: How To Fix? [SOLVED]

CPU Temperature High: How To Fix?

Now you know the possible reasons for CPU temperature high. The provided solutions turn it easy to understand how to lower CPU temp. If you found this article helpful to cool down your CPU, let us know by commenting below. If you still have queries regarding high CPU temperature, feel free to ask here.

https://www.howtogeek.com/437378/windows-10-will-show-gpu-temperature-in-the-task-manager/

Windows 10 Will Show GPU Temperature in the Task Manager
https://www.howtogeek.com/437378/windows-10-will-show-gpu-temperature-in-the-task-manager/
CPU temperature shown directly in the Task Manager would be an amazing feature. Other interesting features in this build include Notepad updating through the Store , the ability to rename virtual desktops in Task View, an improved Optional Features page in Settings, a mouse cursor speed slider in Settings, and your account picture updating …