Modern Setup Host is a key Windows process that installs updates in the background. However, it often uses high CPU and disk resources unnecessarily.

When in amidst of an update, if you check your Task Manager, you will find this process hogging a chunk of CPU resources.

Although this is perfectlynormal, the problem starts when the CPU utilization simply won’t drop down—even after the update is complete.

Tolower CPU usage, you may begin byterminating the Modern Setup Host processin the Task Manager. It will help you get rid of the issue temporarily.

you may try other advanced troubleshooting likerepairing your system filesfor errors andresetting update components—in case Windows update components are corrupted.

Terminate the Process

Most of the time, the CPU usage associated with this particular process peaks up high and stays there for a long period of time. As a result, your systemstarts to slow downand evenfreeze.

In such cases, you may end the task related to the Setup Host in the Task Manager and get rid of this issue immediately.

To begin with,open up your Task Manager. Click onModern Setup Hostorsetuphost.exe. Then, clickEnd taskoption at the bottom-right of the window.

Run Windows Update Troubleshooter

As it turns out, this problem typically arises due to aglitch in the Windows updateprocess.

You need to follow the on-screen instructions to finish the process.

Repair System Files

In most cases, system file corruption often leads to malfunctioning of the Windows update components. So, you may runDISMandSFC commandsand check if it fixes the issue.

Open Command Prompt as an Administrator. At first, we will run the DISM command.Dism /Online /Cleanup-Image /RestoreHealth

After running DISM, again run the SFC commandSfc /Scannow

Delete SoftwareDistribution Folder

Windows operating system stores all the files related to Windows updates in a separate folder calledSoftwareDistribution.

All the files stored in this folder are temporary and can be removed without posing any risks to your system.

you may trydeleting this folderentirely and force Windows to download a new copy of update files.

Again, go to the Services and startWindows update service. Now, closely monitor if the CPU utilization has come down.

Reset Windows Update Components

You may also experience this problem due to issues in Windows update components. In such a case, I suggest you reset them to default settings.