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

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

  1. sainfo

    sainfo MDL Addicted

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    I don't see any point in installing the outdated NET Framework 3.5. Because after installing the OS, it will automatically update to NET Framework 4.1. That's why I never install NET Framework 3.5.

    It would be interesting to see your version of the script. What do you think should be removed from my script and what should be added? If you want, send me your Created.cmd file in a private message.
     
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  2. bendeyar

    bendeyar MDL Member

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    #1282 bendeyar, Nov 30, 2025
    Last edited: Nov 30, 2025
    Everyone has different tastes.
    I adjusted it to my needs.
    Some applications require .NET Framework 3.5. That's why I asked.

    2.Does the update work?
     
  3. sainfo

    sainfo MDL Addicted

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    It should work. I can't check, because I was building image 26220.7271 with this script for myself. When there will be an update for it then I will check it.
     
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  4. siliconbeaver

    siliconbeaver MDL Senior Member

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    #1284 siliconbeaver, Nov 30, 2025
    Last edited: Nov 30, 2025
    How to upgrade to 25H2 from 24H2? I have downloaded windows11.0-kb5068861-x64.msu (3.5GB), left it inside \Win_Optimizer_v.1.6.5\Data\UUP\Insider.

    upload_2025-11-30_13-7-22.png

    but in my two tests, what I obtained was still 24H2 26100.1742. am I missing anything? I wish it was 25H2 26100.7171.

    I am moving it upto \Win_Optimizer_v.1.6.5\Data\UUP and testing , , ,

     
  5. bendeyar

    bendeyar MDL Member

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    Win_Optimizer_v.1.6.5\Data\UUP
     
  6. sainfo

    sainfo MDL Addicted

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    #1286 sainfo, Nov 30, 2025
    Last edited: Nov 30, 2025
    Here's an example: when using the image install.wim 26100.1742 IoT Enterprise LTSC image and moving the Windows11.0-KB5066383-x64.msu and Windows11.0-KB5070307-x64.msu updates to the “UUP” folder, we get version 26220.7271 IoT Enterprise LTSC:
     
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  7. siliconbeaver

    siliconbeaver MDL Senior Member

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    Thanks,

    Still in testing. it's really long (only 69,0% done in one hr)


    Processing 1 of 1 - Adding package Package_for_ServicingStack_7010~31bf3856ad364e35~amd64~~26100.7010.1.8
    [==========================100.0%==========================]
    The changes due to package Package_for_ServicingStack_7010 requires the current servicing session to be reloaded.
    All the packages will be processed again.
    The operation completed successfully.

    ============================================================
    Installing updates...
    ============================================================

    Deployment Image Servicing and Management tool
    Version: 10.0.26100.2454

    Image Version: 10.0.26100.1742

    Processing 1 of 1 - Adding package Package_for_RollupFix~31bf3856ad364e35~amd64~~26100.7171.1.16
    [===========================69.0%======== ]


     
  8. sainfo

    sainfo MDL Addicted

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    Well, I can't help you there. The rest depends on the performance of your PC. In my case, on my PC configuration, the whole process of install.wim image processing by the script takes about 15 minutes.
    :thinking:
     
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  9. siliconbeaver

    siliconbeaver MDL Senior Member

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    #1289 siliconbeaver, Dec 1, 2025
    Last edited: Dec 25, 2025
    Thank sainfo for clarification.

    I am hunting for Windows11.0-KB5070307-x64.msu and Windows11.0-KB5066383-x64.msu.

    Update:

    My last one has got 26220.7171. (still NOT 26220.7271). This run took 25-min.

    Its install.wim is bulky. 4.64 GB, much bigger than 24H2 2.34 GB.
    Its installed OS is 12.0 GB. NOT too bad. Outlook has been removed. edge and all classic apps working fine. (snipping paint calculator notepad MS-DOS).
    For somehow, its C: drive name is Win10. NOT Win11. can be renamed easily.
     

    Attached Files:

  10. siliconbeaver

    siliconbeaver MDL Senior Member

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    Update:

    My last one has got 26220.7171. (still NOT 26220.7271). This run took 25-min.

    upload_2025-11-30_19-24-22.png
     
  11. sainfo

    sainfo MDL Addicted

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    #1291 sainfo, Dec 1, 2025
    Last edited: Dec 1, 2025
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  12. SunLion

    SunLion MDL Expert

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  13. bendeyar

    bendeyar MDL Member

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    Attached Files:

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  14. bendeyar

    bendeyar MDL Member

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    As long as a person lives, she continues to learn
     
  15. SunLion

    SunLion MDL Expert

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  16. Meedas

    Meedas MDL Junior Member

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  17. Meedas

    Meedas MDL Junior Member

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