How to Fix ‘Shell Infrastructure Host’ High CPU Usage

What is ‘Shell Infrastructure Host’ on Task Manager?

The Shell Infrastructure Host is a very important Windows Process, and it’s running in the background for a very important reason.

The ‘Shell Infrastructure Host’, also known as sihost.exe, is a system process that handles various visual aspects of the operating system.

Your desktop background, pop-up notifications, the appearance of the taskbar, and a few other parts of the graphical user interface are handled by the Shell Infrastructure Host process in Windows.

If you are using a stable build of the Windows operating system, the Shell Infrastructure Host process is likely to run in the background and consume a small amount of Memory and CPU usage. However, sometimes due to specific problems, the same process can raise the CPU & RAM usage and freeze your computer.

If you're experiencing high CPU usage from the 'Shell Infrastructure Host' process on your Windows computer, there are several possible solutions you can try:

  1. Restart your computer:
  • Sometimes, a simple restart can fix the high CPU usage issue. Save your work and close all the open applications. Then, restart your computer and check if the problem still persists.
  1. Disable 'Windows Search' service:
  • Press the Windows key + R to open the Run dialog box.
  • Type 'services.msc' and press Enter to open the Services window.
  • Scroll down and find the 'Windows Search' service.
  • Right-click on it and select 'Properties'.
  • Change the 'Startup type' to 'Disabled' and click 'Apply' and 'OK'.
  • Restart your computer and check if the high CPU usage problem is resolved.
  1. Clear 'Windows Search' index:
  • Press the Windows key + R to open the Run dialog box.
  • Type 'control' and press Enter to open the Control Panel.
  • Select 'Indexing Options'.
  • Click on the 'Advanced' button.
  • Click on the 'Rebuild' button under the Troubleshooting section.
  • Wait for the process to complete, then restart your computer and check if the problem still persists.
  1. Run System File Checker (SFC) and DISM:
  • Press the Windows key + X and select 'Command Prompt (Admin)' or 'Windows PowerShell (Admin)'.
  • Type 'sfc /scannow' and press Enter to run the System File Checker.
  • Wait for the process to complete, then type 'DISM /Online /Cleanup-Image /RestoreHealth' and press Enter to run the Deployment Image Servicing and Management tool.
  • Wait for the process to complete, then restart your computer and check if the problem still persists.
  1. Disable Windows Tips and Tricks:
  • Press the Windows key + I to open the Settings app.
  • Go to 'System' > 'Notifications & actions'.
  • Turn off the 'Get tips, tricks, and suggestions as you use Windows' toggle switch.
  • Restart your computer and check if the high CPU usage problem is resolved.

Hopefully, one of these solutions will help you fix the 'Shell Infrastructure Host' high CPU usage issue on your Windows computer.

However considering you have already purchased Restoro and would like us to assist you in doing that utilizing a remote session, please contact our support and they will be happy to help you.

Email: support@restoro.com


Revision #1
Created 1 year ago by Ghicel Santos
Updated 1 year ago by Ghicel Santos