How to Install Windows 11 without TPM 2.0 and Secure Boot

Discussion in 'Windows 11' started by spinalGR, Sep 1, 2021.

  1. kiddo4

    kiddo4 MDL Novice

    Apr 11, 2015
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    I'm trying to in-place upgrade a Win10 machine with no TPM chip.
    I've added the AllowUpgradesWithUnsupportedTPMOrCPU key but the install still refuses due to lack of TPM 2.0.

    Another unsupported machine I got was upgraded just fine using the same procedure.
    What could be the issue? I'm at a loss here.
     
  2. MrBeer

    MrBeer MDL Member

    May 23, 2007
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    Disconnect from internet then try the upgrade
     
  3. Enthousiast

    Enthousiast MDL Tester

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  4. erpsterm35

    erpsterm35 MDL Guru

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  5. galonet

    galonet MDL Novice

    Jul 15, 2021
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    Hi everybody.

    I think the simplest way to bypass TPM check (using all official software), is building Win11 ISO (for TPM FIX purposes) replacing file "install.wim" in Win10 original ISO using software UltraISO.

    Does anyone know some limitation using this method ?

    Thanks.
     
  6. Enthousiast

    Enthousiast MDL Tester

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  7. uffbros

    uffbros MDL Senior Member

    Aug 9, 2010
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    From what I read Rufus does not patch an out of date processor.
     
  8. IXMas

    IXMas MDL Senior Member

    Mar 7, 2021
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    #148 IXMas, Oct 19, 2021
    Last edited: Oct 22, 2021
    deleted
     
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  9. JakeBickel

    JakeBickel MDL Member

    Nov 9, 2009
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    It worked on my i5-2400.
     
  10. erpsterm35

    erpsterm35 MDL Guru

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    you may want to post or comment about that here instead
     
  11. spedia

    spedia MDL Senior Member

    Jul 13, 2009
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    Did you mean 100 instead? How does this work?
     
  12. pisthai

    pisthai Imperfect Human

    Jul 29, 2009
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    @spedia:

    calculate: 102 /1.024 (1MB = 1.024B) and you get: 99.609375, wich is near 100MB, what is needed for MS to show as EFI Partition Size.
     
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  13. IXMas

    IXMas MDL Senior Member

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    #153 IXMas, Oct 22, 2021
    Last edited: Oct 27, 2021
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  14. achilles4ever

    achilles4ever MDL Novice

    Nov 12, 2012
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    Tried that method, doing a inplace upgrade from 22000.258 to 22000.483 and failed… with a laptop Toshiba Tecra A50-A.

    It stops always at 0% install with error “Windows 11 installation has failed”

    Any solutions i can try ?

    Thanks to everybody.
     
  15. IXMas

    IXMas MDL Senior Member

    Mar 7, 2021
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    which method?
     
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  16. achilles4ever

    achilles4ever MDL Novice

    Nov 12, 2012
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    #156 achilles4ever, Oct 22, 2021
    Last edited: Oct 22, 2021
    The one above… putting the file Autounnatend.xml on root folder…
    Also tried to put the appraisexxx.dll on the source folder, but didn’t work too.

    What i don’t understand is why i could upgrade from Windows 10 insider build to the Win 11 22000.258…
    I remember it was dificult too…

    But now i can’t upgrade to another Win 11 build… shame on you Microsoft :)
     
  17. IXMas

    IXMas MDL Senior Member

    Mar 7, 2021
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    #157 IXMas, Oct 22, 2021
    Last edited: Oct 27, 2021
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  18. achilles4ever

    achilles4ever MDL Novice

    Nov 12, 2012
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    I’m trying to do a inplace upgrade directly on windows from 22000.258 to 22000.483… not a clean install… or booting with a usbdisk to upgrade.

    So that picture don’t apply in what i am doing.
     
  19. galonet

    galonet MDL Novice

    Jul 15, 2021
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    Clarifying my question: does anyone know any limitations of this method that I mentioned for clean installations (WITHOUT upgrade)?

     
  20. Enthousiast

    Enthousiast MDL Tester

    Oct 30, 2009
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    If it installs you're fine.