How to determine windows 10 feature update installation source

Ahmed Essam 201 Reputation points
2020-08-31T22:49:04.107+00:00

Hi All,

We have a strange issue where SCCM server is not configured to download (Upgrades Classification) and we experienced an issue that two windows 10 clients have successfully installed windows 10 feature updates.

is there any log file show me how this happened and the update source.

another issue is after the upgrade completed the outlook PST file is disappeared.

Thanks in advance

Windows 10 Setup
Windows 10 Setup
Windows 10: A Microsoft operating system that runs on personal computers and tablets.Setup: The procedures involved in preparing a software program or application to operate within a computer or mobile device.
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  1. Mario A. Hernandez 171 Reputation points
    2020-09-01T02:20:46.687+00:00

    Try to keep your questions to a single issue. Windows 10 feature update and Outlook PST are not really the same topic. Anyway, let me see if I can help with the first part of your problem.

    In PowerShell, type Get-WindowsUpdateLog. This will put "WindowsUpdate.log" file on your desktop. When you go over it, search for "WSUS Server:" and take a look at where it is pointing to, it should be your local WSUS server. Also, look for "DownloadManager Downloading from" and this will tell you if you downloaded anything from Microsoft.com.

    As far as SCCM logs, look for WUHandler.log. In the Windows 10 machine that was upgraded, look for the KB number and search for that KB in this log. If you find it, somehow you are deploying it via SCCM.

    I'm not sure about outlook, but I believe whenever you do a Feature Update, is like installing a new OS and I think that's why you're getting new .pst files but I'm not sure.

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  2. Amandayou-MSFT 11,046 Reputation points
    2020-09-01T03:12:40.733+00:00

    We could use this script to check which installation source is by powershell running as Administrator: $MUSM = New-Object -ComObject "Microsoft.Update.ServiceManager" $MUSM.Services | select Name, IsDefaultAUService And please check if dual scan is able by following screenshot, if so, the source is maybe from Microsoft. ![21764-911.png][1] ![21802-912.png][2] Besides, we could check WindowsUpdate.log, which could record the installation source. Here is the Table between SeviceID and installation source. Windows Update 9482f4b4-e343-43b6-b170-9a65bc822c77 Microsoft Update 7971f918-a847-4430-9279-4a52d1efe18d Windows Store 117cab2d-82b1-4b5a-a08c-4d62dbee7782 Windows Server Update Service 3da21691-e39d-4da6-8a4b-b43877bcb1b7 For example, the Service Id starts with 948, the installation source is from Windows Update. ![21845-913.png][3] ************************************************************************* If the response is helpful, please click "Accept Answer" and upvote it. [1]: /api/attachments/21764-911.png?platform=QnA [2]: /api/attachments/21802-912.png?platform=QnA [3]: /api/attachments/21845-913.png?platform=QnA