How to Troubleshoot ‘Service Host Delivery Optimization’ High Disk or CPU Usage on Windows PC



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Host Delivery Optimization Service is, as the name suggests, a service that optimizes the delivery of important updates to your system. It runs in the background on your system and consumes very few resources.

So if you find that this host delivery optimization service is unusually using your network bandwidth (more than 2 Mbps) for an extended period of time, there are some issues that need to be addressed manually.

What is causing the “Service Host Delivery Optimization” to load your hard drive or CPU high?

Your Windows Store may be automatically downloading updates in the background, which is causing the problem. The Windows Store is often ignored because we don’t use it daily.

What can you do about the high load on your hard drive or CPU “Service Host Delivery Optimization”?



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Turn off “Allow booting from other PC”

  1. Right-click on the Start button and select Settings.
  2. Select Update and security. Under Windows Update, click Advanced Options in the right pane.
  3. On the new page, scroll down to Choose when to install updates and click Optimise deployment.
  4. If you see the following page, disable the button to allow downloads from other PCs.

Perform a clean boot

  1. Type MSConfig in the Run window and press Enter to open the system configuration.
  2. Go to the Services tab and turn on Hide all Microsoft services.
  3. Then click Disable All and click Apply.
  4. Now switch to the Autorun tab and click Open Task Manager.
  5. In Task Manager, select each service individually and click Disable to disable all items.
  6. Finally, restart your computer and see if the problem persists.

Turn off automatic updates in the Windows Store

  1. Press Windows + S to display the search bar. Type Store and click on the Microsoft Store result to open it.
  2. In the Store’s main interface, click on the account image. Then click on Settings in the menu.
  3. In the Settings window, turn off the “Update apps automatically” button.
  4. Reboot your computer and open Task Manager to make sure that the high CPU load has been eliminated by the host delivery optimization service.



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Frequently Asked Questions

The Host Delivery Optimization service is a service that allows you to download Windows updates faster. This service downloads certain updates to servers so that other computers on the Internet can download them faster. This helps reduce bandwidth issues during the update process and increase update speed.

  1. Right-click in the Start menu or press ALT-X on your keyboard.
  2. Click Windows Update on the left, then Advanced Options on the right.
  3. Click the Choose how updates will be deployed button.
  4. If you move the slider on this screen to the "Off" position, this behavior will stop.

You can disable deployment optimization by opening the Windows 10 Settings app and going to the Update and Security category. The Windows Update page should open automatically. Click the "Advanced Options" button at the bottom of the page, then click the small "Delivery Optimization" link at the bottom of the page.