MCM OSD Default Apps Reset

jaybird283 561 Reputation points
2021-03-17T20:27:36.053+00:00

When deploying Windows 10 20H2 (Bare metal) using a MCM Task Sequence (default VL Media, no custom image) the default apps import seems to be getting ignored or reset. in fact i see a few errors about "Default Browser was reset" and other "default apps were reset" messages.

I am pretty sure this is a bug in the semi annual channel version of windows 10 because i can copy the task sequence and have it deploy LTSC 2019 and it works fine.... but i was wondering if anyone has had to deal with this or found a fix. it's the only thing holding me up from moving to MCM for OSD.

and Just an FYI, the process i am using to set the default apps is as follows.

  1. Deploy the OS to a machine
  2. Set the Default Apps Manually
  3. Dism /Online /Export-DefaultAppAssociations:"defaultapps.xml"
  4. Create a package that contains the xml and an importdefaultapps.cmd with the following command line in that script. Dism.exe /online /Import-DefaultAppAssociations:%~dp0Defaultapps.xml
  5. Add a Run Command line step to the end of the task sequence that calls SetDefaultApps.cmd and references the package.

Really all i am changing is adobe stuff and the default mail app to be outlook.

and again this task sequence works fine when i deploy LTSC 2019.

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Microsoft Configuration Manager: An integrated solution for for managing large groups of personal computers and servers.Deployment: The process of delivering, assembling, and maintaining a particular version of a software system at a site.
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  1. Amandayou-MSFT 11,046 Reputation points
    2021-03-18T08:50:45.7+00:00

    Hi @jaybird283 ,

    I am pretty sure this is a bug in the semi annual channel version of windows 10 because i can copy the task sequence and have it deploy LTSC 2019 and it works fine....

    Could we know the issue is on the side of Windows 10 20H2 or the semi annual channel version of windows 10?
    If it is on windows 10, I test it and we could refer to this article: https://systemcenterdudes.com/sccm-windows-10-customization/
    Note: This is non-official Microsoft article just for your reference.

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