Overview – Disable Delivery Optimization
Windows Delivery Optimization service (also known as Windows Update Delivery Optimization, WUDO and Delivery Optimization Service, DoSVC) is responsible to assist users in downloading Windows updates from other devices on the same network and then distributing them to those devices at a later time. This method conserves bandwidth and device resources while also reducing update times for PCs on the same network. Delivery Optimization works by combining resources from all of your devices on the same network to accelerate the process of downloading and installing new packages.

It appears that you’re experiencing some uncontrollable fluctuations in internet bandwidth usage, or that you’re concerned about the security of your computer due to peer sharing running in the background.
By the end of this article, you’ll be able to disable delivery optimization in Windows 11:
1. Turn off Delivery Optimization via Windows Settings
Step 1: Open the Windows settings from the Start menu.

Step 2: Select the “Windows Update” option from the left sidebar and click the “Advanced Options” button.

Step 3: Click the “Delivery Optimization” button in the additional options section.

Step 4: To disable delivery optimization, toggle off the “Allow downloads from other PCs” option.

2. Disable Delivery Optimization via Windows Services
Step 1: Press the “Windows key + R” key combination on your keyboard to open Windows Run, type “services.msc” (without quotation marks) and press the “OK” button.

Step 2: Scroll and double-click the “Delivery Optimization” service.

Step 3: From the down menu, set the startup type to “Disabled” and press the “Apply” button.

Step 4: Restart your computer to make changes take effect.

3. Turn off Delivery Optimization via Group Policy
Step 1: Open the Group Policy from the Start menu.

Step 2: Navigate to the following path:
Computer Configuration > Administrative Templates > Windows Components > Delivery Optimization and double-click the “Download Mode” option.

Step 3: Check the “Enabled” button and select the “Simple (99)” option from the dropdown menu and press the “Apply” button.

Step 4: To save the changes, open the command prompt as an administrator and type the command: gpupdate/force.

Note: When the Simple 99 download mode with no peering is enabled, the Delivery Optimization downloads using HTTP (Hypertext Transfer Protocol) only and does not attempt to contact the Delivery Optimization cloud services.
4. Disable Delivery Optimization via Registry Editor
Step 1: Open the Registry Editor from the Start menu.

Step 2: Navigate to the following path:
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DoSvc and double-click the “Start key” on the right pane.

Step 3: Set the hexadecimal value data from 4.

Step 4: Restart the computer to make changes take effect.

FAQs Related to Delivery Optimization
How to delete delivery optimization cache in Windows 11?
To delete the delivery optimization cache from Windows:
Open Windows Run > type: cleanmgr > Check the Delivery Optimization Files option > Click the OK button to initiate cache removal.
Should I disable delivery optimization in Windows 11?
In Windows, Delivery Optimization is one of the important features. However, some users, on the other hand, may encounter reduced PC performance, high CPU usage, increased RAM and disk usage. In that scenario, it’s a good idea to turn off this service.
Next Steps
We’ve covered how to turn off delivery optimization and its services in Windows 11.
Overall, we can conclude that delivery optimization cuts down the amount of bandwidth and time required to get updates from the Windows Server. Disabling Delivery Optimization does not prevent updates from being installed; it will stop Windows from getting updates from non-Microsoft sources, such as local network devices.
Further, customize the computer’s settings depending on your preferences by referring to the related articles below.
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