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

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

  1. mustafa gotr

    mustafa gotr MDL Senior Member

    Apr 17, 2018
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    It's not fully stable yet. I'm planning many more changes. Maybe I'll add additional languages to the interface.
     
  2. mustafa gotr

    mustafa gotr MDL Senior Member

    Apr 17, 2018
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    At the moment there isn’t a “Select All” option. To mark items for removal, just highlight them and press the Spacebar on your keyboard. I agree though, a Select All / Deselect All feature would be very useful when working with a large number of language files.
     
  3. Mavericks Choice

    Mavericks Choice MDL Guru

    Aug 5, 2015
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    Thanks guys.
    At this stage I'm sticking with SunLions script, it's very reliable & produces a working image always under 5gb regardless of my choices.
     
  4. jagoanku

    jagoanku MDL Novice

    Jun 6, 2026
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    I like the discussion and try cooking for win11 26h2 build 26300.8772
     
  5. otvertka

    otvertka MDL Member

    Aug 13, 2009
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    #1926 otvertka, Jul 14, 2026
    Last edited: Jul 14, 2026
    Hi @SunLion,

    I wanted to share a quick update with you. I have successfully updated the .ps1 file, integrated it into your script, and completed the testing phase.

    With this update, L1 and L2 updates are downloaded separately and are fully ready for integration. For now, I have only tested this on build 26100.1742 (I haven't had a chance to test it on 26800 yet), and the results are fantastic! The entire process has become fully automated, and the final install.wim file came out to 4.90 GB, with both Windows Defender and Edge WebView2 kept intact.

    Thank you for your foundational work—everything is running flawlessly now. Great job!

    Best regards,
     
  6. sainfo

    sainfo MDL Addicted

    Dec 6, 2021
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    #1927 sainfo, Jul 14, 2026
    Last edited: Jul 15, 2026
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  7. SunLion

    SunLion MDL Expert

    May 11, 2011
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    Which .ps1 file are you referring to?

    I have so much information here that I'm feeling a bit dizzy...
     
  8. otvertka

    otvertka MDL Member

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    I saw in the posts above that updates are automatically written as links in the all.txt file for downloading, so I tried downloading and editing it, but the result was unsuccessful—out of 5 attempts, 3 were successful and 2 were unsuccessful. I tried writing them as L1 and L2, but it couldn’t find L2, so I went back to your method manually.
     

    Attached Files:

  9. SunLion

    SunLion MDL Expert

    May 11, 2011
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    Yes, for this script—which works with 24H2 and 25H2—the .ps1 file isn't a viable option.

    The solution is to use manual mode instead.

    In fact, that’s exactly what I’m testing right now.


    Thanks for the reply.

    Best regards,
     
  10. jagoanku

    jagoanku MDL Novice

    Jun 6, 2026
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    wow, i cannot imagine output will be 2.4 GB, what a compression and must be deep removal procedure. I learn a lot from sun's syntax and appreciate it. is it allow or not to share here a ps1 and a launcher bat my personalize script?
     
  11. Mavericks Choice

    Mavericks Choice MDL Guru

    Aug 5, 2015
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    I don't see why you couldn't share your script.
     
  12. SunLion

    SunLion MDL Expert

    May 11, 2011
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    Anything that can contribute to improving our scripts will be welcome.
     
  13. sainfo

    sainfo MDL Addicted

    Dec 6, 2021
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    Well, what other requirements could there possibly be for the IoT LTSC version? I'm more than satisfied with it. I just wanted to build the IoT LTSC 26H2 release for myself, so I did. Something like that...
     
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  14. sainfo

    sainfo MDL Addicted

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    #1936 sainfo, Jul 15, 2026
    Last edited: Jul 15, 2026
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  15. Mavericks Choice

    Mavericks Choice MDL Guru

    Aug 5, 2015
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    @sainfo I can see it maybe a problem for some cutting all x86 from the source, be good to test this though.
     
  16. sainfo

    sainfo MDL Addicted

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    #1938 sainfo, Jul 15, 2026
    Last edited: Jul 15, 2026
    Let me repeat: I compiled this tool purely for myself (not for general use), and since I'm not even interested in x86 applications in principle, I considered that the x64 bit image obtained after processing by the script was more interesting to me.

    Overall, I've tested this tool with versions 24>25>26H2, and I personally haven't encountered any issues with it. However, this tool is currently in the testing phase, because I still want to add a lot of features and make many changes to it—all to ensure that end users have the best possible experience when using it.
     
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  17. sainfo

    sainfo MDL Addicted

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    #1940 sainfo, Jul 15, 2026
    Last edited: Jul 15, 2026
    You're not happy with it—so what exactly didn't you like about it, aside from the fact that it's very slow at processing data, of course?
    Other than that, I think his script takes a very interesting and innovative approach to solving our problems. As far as I'm concerned, the script's author is simply amazing!

    He must be a fool in some way, because after I suggested he consider my version of his script’s layout, he simply banned me for life from his site, without any explanation at all. As far as I’m concerned, that was a very unwise decision on his part! But he probably knows best—geniuses are like that; they do things their own way...
     
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