Slimdown11 – turn Windows 11 or LTSC 2024 into classic/legacy Windows

Discussion in 'Windows 11' started by SunLion, Mar 2, 2025.

  1. hoak

    hoak MDL Addicted

    Nov 13, 2009
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    #1601 hoak, Mar 22, 2026
    Last edited: Mar 23, 2026
  2. tomay3000

    tomay3000 MDL Member

    Apr 16, 2010
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    How to apply for an already installed Windows 11 22H2 ?
     
  3. hoak

    hoak MDL Addicted

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  4. Mavericks Choice

    Mavericks Choice MDL Guru

    Aug 5, 2015
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    @SunLion Has anyone reported after pre downloading the updates, then running the main script, should I re run the main script the pre downloaded updates are erased.Have to re download the updates again?
    I haven't experienced this issue before?
     
  5. SunLion

    SunLion MDL Expert

    May 11, 2011
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    #1605 SunLion, Mar 23, 2026
    Last edited: Mar 23, 2026
    (OP)
    It remains the same, without modifications.

    When the _PreDownloadAllUpdates.cmd script is executed, all .cab and .msu updates are removed for pre-cleanup. Then, all the latest updates are downloaded.

    The main script will only download updates that are not already in the folder.
     
  6. Mavericks Choice

    Mavericks Choice MDL Guru

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    @SunLion Thank you I re downloaded a fresh 26H1 archive, ran the _PreDownloadAllUpdates.cmd it downloads updates & places them all in the UUP dir.
    Once this is completed if I happen to re run _PreDownloadAllUpdates.cmd again it wants to re download all again? This has never occurred before?
    I have not modified the folder structure. 26h1.jpg
     
  7. SunLion

    SunLion MDL Expert

    May 11, 2011
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    In versions 2xH2 and 26H1, a pre-cleanup was added to the _PreDownloadAllUpdates.cmd script to ensure that no previous updates exist.

    In my case, I use a single structure to edit all versions. So, when I update the all.txt file, I want only the most recent updates to remain in the UUP folder.

    Perhaps this is not necessary for the package published for you. I will remove it.

    Edit the _PreDownloadAllUpdates.cmd file and remove the following lines:

    lines 20 and 21
    if exist *.cab del /f /q *.cab >nul
    if exist *.msu del /f /q *.msu >nul
     
  8. Mavericks Choice

    Mavericks Choice MDL Guru

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    Yes perfect now.
    Pre.jpg
     
  9. Mavericks Choice

    Mavericks Choice MDL Guru

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    I have found in 26H1 when running in a VM the store & some other apps that should have been removed
    are there on first startup, has WU reinstalled these perhaps?

    Store.jpg
     
  10. SunLion

    SunLion MDL Expert

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    #1610 SunLion, Mar 24, 2026
    Last edited: Mar 24, 2026
    (OP)
    In my tests, they are removed. See attached image.

    Check if the star2.bin file exists in the path below:

    $OEM$\$Docs\Default\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\LocalState\start2.bin

    NOTE: If you chose not to install Openshell, this will not be removed either, as you will then have the complete official Windows Start Menu.
     

    Attached Files:

  11. sainfo

    sainfo MDL Addicted

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    #1611 sainfo, Mar 24, 2026
    Last edited: Mar 25, 2026
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  12. sainfo

    sainfo MDL Addicted

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    #1613 sainfo, Mar 25, 2026
    Last edited: Mar 25, 2026
    Yes, it supports all versions, but you should choose the specific version you need for your processing.
    You can use this tool with any (single) install.wim file from the 24H2–26H1 (26H2) release, in the edition and locale of your choice.
     
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  13. sainfo

    sainfo MDL Addicted

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    Hmm, come on—working with the script is extremely simple. The script has been thoroughly tested on all versions from 24H2 to 26H2, and no issues were found. Please read the instructions carefully again.
     
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  14. asache

    asache MDL Member

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    #1616 asache, Mar 28, 2026
    Last edited: Mar 31, 2026
    Instructions are on half the desktop while I follow the steps in the other half.
    Your guide info dosent says nothing about last step to create the iso.

    l.e: i tried with different iso, all end up with name 24h2 even if iso is 26h1
     
  15. SunLion

    SunLion MDL Expert

    May 11, 2011
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    Tested in VirtualBox, without autounattend.xml, and the installation ran without errors.

    I'm going to add the WinSetup.dll file to the sources folder along with the script.
     

    Attached Files:

  16. Logon

    Logon MDL Member

    May 31, 2008
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    I'll do it very soon. Thank you.