Windows 10: Build update Diagnostic prompt (Shift+F10 to get command prompt) gone? Solved

  1. Posts : 1,925
    Windows 10 x86 14383 Insider Pro and Core 10240
       30 Jul 2017 #1

    Build update Diagnostic prompt (Shift+F10 to get command prompt) gone?

    The Update process for new Windows 10 builds has shown evolutionary changes over the past two years as part of the Insider Preview Programme.

    One noticeable change has been that the ability, by default, to observe behind the scenes events by opening a command prompt with the keyboard shortcut Shift+F10, which has for a long time (back to XP at least), been a means to investigate and interact with the Windows Preinstallation Environment (WinPE), is now apparently disabled.

    WinPE does not normally have a graphical shell interface, but used to allow some graphical applications such as Task Manager, Notepad, Regedit for instance, to observe and interact in a limited way with the environment during installation or upgrade with the Shift+F10 shortcut.

    Windows Setup has a commandline switch:
    /DiagnosticPrompt {enable | disable} Specifies that the Command Prompt is available during Windows Setup.

    Enable: The Command Prompt can be accessed by pressing Shift+F10 during Windows setup.

    Disable: The Command Prompt is not available during Windows setup. The Command Prompt wil not be available while offline and OOBE phases are running. This is the default setting.

    setup /DiagnosticPrompt enable

    This setting is new for Windows 10, Version 1703.
    Windows Setup Command-Line Options | Microsoft Docs)

    My question is how to enable this feature during Build updates, which are initiated by Windows Update, rather than by user commands.

    Does anyone know if this feature can be re-enabled?
      My ComputersSystem Spec

  2. Posts : 6,446
    10 Home x64 (1709) (10 Pro on 2nd pc)
       30 Jul 2017 #2

    It would appear you can pass the parameters in Setupconfig.ini

    Use this file as an alternative to passing parameters to Windows setup on a command line....
    IT pros can use the setupconfig file to add parameters to Windows Setup from Windows Update and Windows Server Update Services...
    ...Do not include “/” characters, and with parameter and value pairs, include “=” between the two.
      My ComputersSystem Spec

  3. Posts : 1,925
    Windows 10 x86 14383 Insider Pro and Core 10240
    Thread Starter
       30 Jul 2017 #3

    Thanks for the pointer! I have set up a SetupConfig.ini in the specified folder.

    The commandline switch is:

     setup /DiagnosticPrompt enable
    according to the source in my post, but yours indicates that I should remove the "/" and insert a "=", it seems.

    Does this look OK to you?

    Click image for larger version. 

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    I'll have to wait until the next build to see if it works.
      My ComputersSystem Spec

  4. Posts : 6,446
    10 Home x64 (1709) (10 Pro on 2nd pc)
       30 Jul 2017 #4

    Fafhrd said: View Post
    Does this look OK to you?
    No, not quite. Have another look at the example in the link I gave earlier:

    According to that it should be:
      My ComputersSystem Spec

  5. Posts : 1,925
    Windows 10 x86 14383 Insider Pro and Core 10240
    Thread Starter
       31 Jul 2017 #5

    +:FacePalm: I only read the bit Starting "Using Windows Update..."

    The whole PDF (9.5MB) "Windows Manufacturing" from the link you gave is a mine of Information.

    Thanks Bree, I have changed the file.
      My ComputersSystem Spec

  6. Posts : 1,436
    Windows 10 Pro (32-bit) 16299.15
       31 Jul 2017 #6

    I seem to remember Shift-F10 disappeared for some of the Insider releases coming up to the release of 1703, then re-appeared by 1703 itself. Hopefully it will return by the 1709 release version.
      My ComputerSystem Spec

  7. Posts : 1,925
    Windows 10 x86 14383 Insider Pro and Core 10240
    Thread Starter
       01 Aug 2017 #7

    Just to report that I have just walked in on a laptop that I had modified as above, in the process of upgrading, I presume from 16251.0 to 16251.1000, and that shift+F10 was working fine to show the command console at about 14% after the first reboot.

    I have marked this thread solved, thanks to Bree for the directions.
      My ComputersSystem Spec

  • Posts : 6,446
    10 Home x64 (1709) (10 Pro on 2nd pc)
       01 Aug 2017 #8

      My ComputersSystem Spec

  • Posts : 1,925
    Windows 10 x86 14383 Insider Pro and Core 10240
    Thread Starter
       01 Aug 2017 #9

    It appears that the C:\Users\Default\AppData\Local\Microsoft\Windows\WSUS folder and contents are not persistent after the upgrade, but C:\Windows.old\Users\Default\AppData\Local\Microsoft\Windows\WSUS\setupconfig.ini was present.

    Also I needed to make a simple permissions change (modify or full control) before I could save the setupconfig.ini file to the \WSUS\ folder I had just created in that location.

    Still, an easy enough change to make.
      My ComputersSystem Spec


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