Network Activity by Delivery Optimization despite being turned off

Noticed this today on my laptop currently running Windows 10 Home x64 v1803 build 17134.191.



This happened when I ran the Settings app and clicked on 'Update & Security' whilst the system was still settling down immediately after Windows startup. I noticed that it was already checking for updates without me having to click the 'Check for updates' button. I got the 'You're up to date' message after it was done. The Delivery Optimization service continued to display network activity for a few minutes even after the 'You're up to date' message by Windows Update.

Subsequent checks for update rightly uses the Windows Update service.



Also noticed that Microsoft Store had updated an app minutes ago.



Considering that my laptop is the only Win 10 system on my home network, what was Delivery Optimization downloading and from where? More importantly, why is it active despite being turned off in settings. Is this a known glitch? Appreciate some insight on this. TIA.

Possibly related to universal app updates if all Windows update downloads are complete? Note that scans for app updates are quite frequent- 4 hourly I seem to recall.

When you say turned off, presumably you mean

dalchina said:

Possibly related to universal app updates if all Windows update downloads are complete? Note that scans for app updates are quite frequent- 4 hourly I seem to recall...

Yes, that's why I posted the Microsoft Store screenshot.

dalchina said:

When you say turned off, presumably you mean

Yes, you presume correctly. I indicated that in the first screenshot. Now, the question is - why is it being used despite being turned off. Are UWP apps updated by the Microsoft Store app exclusively using Delivery Optimization?

I thought DO was an alternative method that used P2P rather than direct downloads. Am I wrong about that?