[DISCUSSION] Windows 11 26H1 Build 28000 (PC) [x64/arm64 Retail - br_release]

Discussion in 'Windows 11' started by Enthousiast, Nov 7, 2025.

  1. damianfox

    damianfox MDL Senior Member

    Jan 23, 2011
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    26H1 SP1 :)
     
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  2. Carlos Detweiller

    Carlos Detweiller Emperor of Ice-Cream
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    Dec 21, 2012
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    It is planned to unify the branches, most probably in 27H2.
     
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  3. Enthousiast

    Enthousiast MDL Tester

    Oct 30, 2009
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  4. Enthousiast

    Enthousiast MDL Tester

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  5. MaNdoEsAM

    MaNdoEsAM MDL Novice

    Feb 17, 2011
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    Where is the download link for latest version 26H2, Thanks
     
  6. pp03

    pp03 MDL Expert

    Apr 12, 2014
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    26h2 is from 24h2, not 26h1
     
  7. MaNdoEsAM

    MaNdoEsAM MDL Novice

    Feb 17, 2011
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    I apologize but i didn't get you
     
  8. Enthousiast

    Enthousiast MDL Tester

    Oct 30, 2009
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    There is no retail 26H2 ISO yet, you can integrate the 26H2 EKP in any existing retail ISO or install it manually afterwards.

    ps, he meant to say that you are asking 26H2 questions in the 26H1 thread, 26H2 is not related to 26H1, this is the correct thread:
    [DISCUSSION] Windows 11 Build 26x00 (PC) [24/25/26H2 Retail- GE-release]
     
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  9. abbodi1406

    abbodi1406 MDL KB0000001

    Feb 19, 2011
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  10. Enthousiast

    Enthousiast MDL Tester

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  11. Paul Mercer

    Paul Mercer MDL Guru

    Apr 6, 2018
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  12. sandy-bridge

    sandy-bridge MDL Member

    Feb 19, 2015
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    Thanks, this worked, I used the MVS ISO and ran and in-place upgrade with setup.exe and now Windows Update works again.

    How is it so that 28020 has a different base build? I switched to the Canary channel when the builds were still 27xxx and upgraded through to 28000 and later 28020? And if so, how come MS allows switching to the Release Preview channel from Beta if the base builds are different?
     
  13. Paul Mercer

    Paul Mercer MDL Guru

    Apr 6, 2018
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    they have been doing this for about a year now
    if you want to know what the base build is, just download the corresponding LCU and check the update.mum file, for retail and RP builds it's 28000.1

    msft will eventually publish full builds in the WU (in-place upgrade style updates), it's not a hard block or anything
    just use ISO as in-place upgrade if it's not possible to switch your build correctly using WU at that particular moment
     
  14. dimazavra

    dimazavra MDL Novice

    May 11, 2025
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  15. dimazavra

    dimazavra MDL Novice

    May 11, 2025
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    I can’t decide which version to go with for a clean install today)
     
  16. stemic28

    stemic28 MDL Senior Member

    Aug 23, 2009
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    For arm64 26H1 and for x64 26H2
     
  17. pp03

    pp03 MDL Expert

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    for x64 i propose 26h1 also
     
  18. Enthousiast

    Enthousiast MDL Tester

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  19. dimazavra

    dimazavra MDL Novice

    May 11, 2025
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    There is no precise data on any fundamental structural differences, apart from separate development branches and update channels. Support for newer processors does not rule out backward compatibility or proper operation on older processors. Ultimately, all negative recommendations from users are based only on Microsoft’s general description of the intended use for newer devices, while almost no one can point to any actual issues when running it on x86-64 processors.