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3 Ways to Fix System Idle Process High CPU in Windows 11

Performing a clean boot is a quick way around this issue

4 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

System Idle Process helps to increase the efficiency and responsiveness of your computer by freeing up resources used by other programs and processes.

However, you may have noticed that your computer’s CPU usage for the System Idle Process is sometimes high. System Idle Process High CPU may consume many system resources instead of helping your system perform at its peak. This can be a problem for gamers who have limited hardware.

This problem can also occur when your PC runs for a long time or uses multiple programs simultaneously, and the CPU usage suddenly jumps up to 100%. Luckily, you can easilyfix the high CPU in Windows 11.

Why is my CPU usage so high in Windows 11?

Why is my CPU usage so high in Windows 11?

Your computer’s CPU usage measures how much your CPU is being used at any moment. High levels can cause lag or slow performance because it monopolizes your processor’s resources.

Some of the most common causes:

If you see high CPU usage, it’s a good idea to initiate the System Idle Process to see what’s using up all that processing power so you can determine if it needs to be addressed.

So, Is System Idle Process important? It is responsible for monitoring your PC’s CPU and memory usage and, if necessary, will initiate additional processes to help increase performance.

How can I fix System Idle high CPU?

How can I fix System Idle high CPU?

1. Disable Startup apps and programs

Alternatively, you can uninstall an app you don’t need anymore to free up space and prevent it from taking up too much CPU.

2. Perform Disk fragmentation

  1. Hit theWindows+Ekeys simultaneously to openFile Explorer.

  2. Right-click on the drive where Windows 11 is installed (in this case Drive C) and selectProperties.

  3. Select theToolstab and then clickOptimizeunderOptimize and defragment drive.

  4. In the new window, selectDrive Cagain and then click onAnalyzethenOptimize.

3. Perform a Clean Boot

After applying the last step, you can now restart your PC.

How do I disable System Idle Process in Windows 11?

If you feel that the System Idle Process is slowing down your PC, you can disable it. To do so, follow the steps below:

We hope this guide will assist you if you are facing this issue. Remember to refer to our fix article when you have anempty task manager with a high CPU.

If your CPU is on its last leg and is worn out, we also have a rich list of thebest CPUs for Windows 11you can choose from if you are in the market for an upgrade.

In the comment section below, let us know which solution worked best for you.

More about the topics:High CPU usage,Windows 11

Claire Moraa

Windows Software Expert

Claire has a knack for solving problems and improving the quality of life for those around her. She’s driven by rationality, curiosity, and simplicity, and always eager to learn more about Microsoft’s products. With a background in teaching and reviewing, she breaks down complex topics into easily understandable articles, focusing mostly on Windows 11, errors, and software.

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Claire Moraa

Windows Software Expert

With a background in teaching and reviewing, she breaks down complex topics into easily understandable articles, focusing mostly on Windows 11 errors.