Moden Setup Host using 50% CPU on Windows 10

If you are experiencing high CPU usage on your Windows 10 computer and have identified that the Modern Setup Host process is the culprit, there are a few things you can do to fix the issue.

Firstly, it is important to understand what the Modern Setup Host process is and why it might be using up so much CPU. This process is responsible for installing Windows updates and performing other system maintenance tasks. If it is using up a lot of CPU, it could be because it is stuck in a loop or encountering errors during an update.

Here are some steps you can take to fix the issue:

1. Restart your computer: Sometimes, simply restarting your computer can resolve the issue. This will stop all processes and services running on your computer and give it a fresh start.

2. Run the Windows Update troubleshooter: Windows 10 has a built-in troubleshooter that can help identify and fix issues with Windows updates. To run the troubleshooter, go to Settings > Update & Security > Troubleshoot > Windows Update.

3. Reset the Windows Update components: If the troubleshooter doesn’t fix the issue, you can try resetting the Windows Update components. This involves stopping the Windows Update service, renaming some folders, and restarting the service. Microsoft has a detailed guide on how to do this, which you can find here:

4. Perform a clean boot: If the issue persists, you can try performing a clean boot. This will start your computer with only the essential services and processes running, which can help identify if there is a conflict with another program or service. Microsoft has a guide on how to perform a clean boot here:

5. Check for malware: It is possible that the high CPU usage is caused by malware on your computer. Run a full scan with your antivirus software to check for any threats.

In conclusion, if you are experiencing high CPU usage on your Windows 10 computer due to the Modern Setup Host process, there are several steps you can take to fix the issue. Try restarting your computer, running the Windows Update troubleshooter, resetting the Windows Update components, performing a clean boot, and checking for malware. If none of these steps work, you may need to seek further assistance from a professional.


In conclusion, don’t let the Modern Setup Host process slow down your Windows 10 computer. By following the steps outlined above, you can identify and fix the issue, and get your computer running smoothly again. Remember to always keep your system up to date and protected from malware to prevent future issues. If you need further assistance, don’t hesitate to seek help from a professional.

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