diff --git a/windows/deployment/do/delivery-optimization-workflow.md b/windows/deployment/do/delivery-optimization-workflow.md
index 2c4b6f9158..b994ac956f 100644
--- a/windows/deployment/do/delivery-optimization-workflow.md
+++ b/windows/deployment/do/delivery-optimization-workflow.md
@@ -39,4 +39,4 @@ This workflow allows Delivery Optimization to securely and efficiently deliver r
 | cp\*.prod.do.dsp.mp.microsoft.com <br> | 443 | Content Policy | Provides content specific policies and as content metadata URLs. | **Profile**: The device type (for example, PC or Xbox) <br> **ContentId**: The content identifier <br> **doClientVersion**: The version of the DoSvc client <br> **countryCode**: The country the client is connected from <br> **altCatalogID**: If ContentID isn't available, use the download URL instead <br> **eID**: Client grouping ID <br> **CacheHost**: Cache host ID |
 | disc\*.prod.do.dsp.mp.microsoft.com | 443 | Discovery | Directs clients to a particular instance of the peer matching service (Array), ensuing that clients are collocated by factors, such as content, groupID and external IP. | **Profile**: The device type (for example, PC or Xbox) <br> **ContentID**: The content identifier <br> **doClientVersion**: The version of the DoSvc client <br> **partitionID**: Client partitioning hint <br> **altCatalogID**: If ContentID isn't available, use the download URL instead <br> **eID**: Client grouping ID |
 | array\*.prod.do.dsp.mp.microsoft.com | 443 | Arrays | Provides the client with list of peers that have the same content and belong to the same peer group. | **Profile**: The device type (for example, PC or Xbox) <br> **ContentID**: The content identifier <br> **doClientVersion**: The version of the DoSvc client <br> **altCatalogID**: If ContentID isn't available, use the download URL instead <br> **PeerID**:  Identity of the device running DO client <br> **ReportedIp**: The internal / private IP Address <br> **IsBackground**: Is the download interactive or background <br> **Uploaded**: Total bytes uploaded to peers <br> **Downloaded**: Total bytes downloaded from peers <br> **DownloadedCdn**: Total bytes downloaded from CDN <br> **Left**: Bytes left to download <br> **Peers Wanted**: Total number of peers wanted <br> **Group ID**: Group the device belongs to (set via DownloadMode 2 + Group ID GP / MDM policies) <br> **Scope**: The Download mode <br> **UploadedBPS**: The upload speed in bytes per second <br> **DownloadBPS**: The download speed in Bytes per second <br> **eID**: Client grouping ID |
-| dl.delivery.mp.microsoft.com <br> emdl.ws.microsoft.com | 80 | Delivery Optimization metadata file hosting | CDN hostnames for Delivery Optimization content metadata files | Metadata download can come from different hostnames, but it's required for peer to peer. |  
+| dl.delivery.mp.microsoft.com <br> emdl.ws.microsoft.com <br> download.windowsupdate.com | 80 | Delivery Optimization metadata file hosting | CDN hostnames for Delivery Optimization content metadata files | Metadata download can come from different hostnames, but it's required for peer to peer. |  
diff --git a/windows/deployment/do/waas-delivery-optimization-faq.yml b/windows/deployment/do/waas-delivery-optimization-faq.yml
index 1a0f413fd5..4cccd98fa6 100644
--- a/windows/deployment/do/waas-delivery-optimization-faq.yml
+++ b/windows/deployment/do/waas-delivery-optimization-faq.yml
@@ -81,6 +81,7 @@ sections:
           Delivery Optimization metadata:
           
           - `http://emdl.ws.microsoft.com`
+          - `http://download.windowsupdate.com`
           - `http://*.dl.delivery.mp.microsoft.com`
 
           Windows Update and Microsoft Store backend services and Windows Update and Microsoft Store payloads