windows-itpro-docs/windows/deployment/update/windows-update-sources.md
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Determine the source of Windows updates Determine the source that Windows Update service is currently using. w10 library kaushika-msft medium jaimeo 04/05/2018

Determine the source of Windows updates

Windows 10 devices can receive updates from a variety of sources, including Windows Update online, a Windows Server Update Services server, and others. To determine the source of Windows Updates currently being used on a device, follow these steps: 

  1. Start Windows PowerShell as an administrator
  2. Run \$MUSM = New-Object -ComObject “Microsoft.Update.ServiceManager”.
  3. Run \$MUSM.Services. Check the resulting output for the Name and OffersWindowsUPdates parameters, which you can intepret according to this table:
Output Interpretation
- Name: Microsoft Update
-OffersWindowsUpdates: True
- The update source is Microsoft Update, which means that updates for other Microsoft products besides the operating system could also be delivered.
- Indicates that the client is configured to receive updates for all Microsoft Products (Office, etc.)
- Name: DCat Flighting Prod
- OffersWindowsUpdates: False
- The update source is the Windows Insider Program.
- Indicates that the client will not receive or is not configured to receive these updates.
- Name: Windows Store (DCat Prod)
- OffersWindowsUpdates: False
-The update source is Insider Updates for Store Apps.
- Indicates that the client will not receive or is not configured to receive these updates.
- Name: Windows Server Update Service
- OffersWindowsUpdates: True
- The source is a Windows Server Updates Services server.
- The client is configured to receive updates from WSUS.
- Name: Windows Update
- OffersWindowsUpdates: True
- The source is Windows Update.
- The client is configured to receive updates from Windows Update Online.

See also:

Understanding the Windowsupdate.log file for advanced users

You can't install updates on a Windows-based computer

How to read the Windowsupdate.log file on Windows 7 and earlier OS versions