1. f23948

    f23948 MDL Member

    Nov 29, 2017
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    will 1809 version product key works for 2021?
     
  2. Enthousiast

    Enthousiast MDL Tester

    Oct 30, 2009
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    Nope, only the gVLK is still valid.
     
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  3. mydigitallifesev

    mydigitallifesev MDL Novice

    Jul 18, 2015
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    Enthousiast, thank you for everything you've done here. I've read all 53 pages (eyes burning, lol!). Do you have a recommendation on the 'best' LTSC 2021 IoT HWID activator?

    KMS_VL_ALL was amazing for regular enterprise LTSC 2021
     
  4. Enthousiast

    Enthousiast MDL Tester

    Oct 30, 2009
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    Afaik, KMS activation will turn IoT Enterprise 2021 LTSC into normal Enterprise 2021 LTSC, but HWID or KMS38 should work (check my sig).
     
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  5. f23948

    f23948 MDL Member

    Nov 29, 2017
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    can i use version 1809 product key for 2021? mydigitallifesev?
     
  6. Enthousiast

    Enthousiast MDL Tester

    Oct 30, 2009
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  7. f23948

    f23948 MDL Member

    Nov 29, 2017
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    can i upgrade from version 1809 to 2021?
     
  8. Clerfayt

    Clerfayt MDL Novice

    Feb 5, 2019
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    You can. Use inplace upgrade.
     
  9. Memnon

    Memnon MDL Member

    Feb 22, 2010
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    Is it possible to upgrade to Windows 10 LTSC 2021 from regular Windows 10 21H1?
     
  10. voli

    voli MDL Novice

    Nov 10, 2007
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    no
     
  11. Tursu

    Tursu MDL Novice

    Jan 11, 2020
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    Are direct download links working? I could not get them, Cloudflare error appears.
     
  12. LostED

    LostED SVF Patch Lover

    Jul 30, 2009
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  13. AndyMutz

    AndyMutz MDL Senior Member

    Jun 30, 2011
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    while officially not supported, it is possible.
    you have to change the EditionID to EnterpriseS in HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion, then you can perform an in-place upgrade to LTSC.

    -andy-
     
  14. awuctl

    awuctl MDL Member

    Jun 6, 2020
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    You are correct. These are not actual "builds", they are essentially "service packs".
    1904{2,3,4} do not introduce new base files. They're all based on 19041 files.
    This means 19041 and the rest are effectively the same build ("build" as in "software build"), because all their updates and components rely on the same base (19041.1).

    I fail to see how that is a "problem" or a "bug" or really anything though..
     
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  15. Tom Mix

    Tom Mix MDL Junior Member

    Jul 24, 2009
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    @awuctl
    feel free to read the already posted infos, or search the web.
    there exist functions/features now rendered useless ...
     
  16. awuctl

    awuctl MDL Member

    Jun 6, 2020
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    I read them and you seem to be very confused by something completely normal.
    And now you're talking about "features" (whatever that's supposed to mean) without any explanation (screenshots, write ups, packages, […] or really anything) for what you said.
    The only thing you mention in those posts is how "19041" instead of "19044" (or any other build with EPs) is a bug, when it absolutely isn't.

    You're the person that's confused about build numbers, not me.
    Explain what you mean or stop bothering people with your non-problem.
     
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  17. awuctl

    awuctl MDL Member

    Jun 6, 2020
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    #1058 awuctl, Nov 25, 2021
    Last edited: Nov 25, 2021
    I'll assume this is what you mean..

    shell32.dll's CDesktopWatermark::s_GetProductBuildString function (this actually fetches the build to draw for PaintDesktopVersion), uses the following registry key:
    Code:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\BuildLab
    This is as close to what you would call the "software build" as it gets. This is the designation of the build artifacts that Microsoft actually compiled.
    Those (ie. 19041 RTM's build artifacts) happen to be the same for 19041, 19042, 19043 and 19044.

    Builds 19042, 19043 and 19044 weren't rebuilt from scratch (as any new build's RTM is); they build upon (get it?) the build artifacts of 19041.

    Edit (about winver):

    winver uses shell32.dll's ShellAboutW (which is public) and that gets the entire version from:
    Code:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\CurrentBuild
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\DisplayVersion
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ReleaseId (for pre xxHx version naming)
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\UBR
    This build has nothing to do with the build artifacts used for it.
     
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  18. trixeo

    trixeo MDL Novice

    Jan 23, 2009
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    Agreed. I think it is similar to that a page I've found googling for this:
     
  19. Tom Mix

    Tom Mix MDL Junior Member

    Jul 24, 2009
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    @awuctl
    this is fun :gathering:
    these M$ trainees wrecked the PaintDesktopVersion [call it: feature or function or tweak or gadget or whatever]
    i hope ur not employed by M$ and forced to call it normal

    i wrote several times that for my use case it:
    • worked until BUiLD 17763 as intended and expected
      [from w2k to win1809 (maybe later, i do not play on the SAC though)]
    • is still working on BUiLD 20348 as intended and expected
      [from server2k to server2022]
    only very few know that or even use that function!
    i guess not even 1% of those
    posted here regarding my confirmation request.:dunno:
    which btw was solved because a build is not a build anymore!

    hence the PaintDesktopVersion is rendered useless :suicide:
    'artifacts'; nice description/definition, ty for the additional confirmation :animatedwink: