UefiSeven: Easily boot Windows 7 on UEFI class 3 devices

Discussion in 'Windows 7' started by manatails, Aug 3, 2020.

  1. Chuterix

    Chuterix MDL Senior Member

    Apr 18, 2022
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  2. alzcoew397

    alzcoew397 MDL Senior Member

    Oct 6, 2018
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    dead news???
     
  3. alzcoew397

    alzcoew397 MDL Senior Member

    Oct 6, 2018
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    by the way on VMware it works smooth UEFI + Secure Boot.
     
  4. Rangdaa

    Rangdaa MDL Novice

    Mar 29, 2011
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    Sorry for the late reply - I am not getting email notifications of new posts.

    Thanks for the reply. I will make an attempt and report back.
     
  5. PitKoz

    PitKoz MDL Novice

    Feb 24, 2018
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    @wkeller
    Hejka,
    Jak to zrobić tak w realu?
    How to do it in real world?
    I skąd wziąść te Iso?
    And where from get those iso?

    Please Help :)
     
  6. Enthousiast

    Enthousiast MDL Tester

    Oct 30, 2009
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    and now in english,,,
     
  7. PitKoz

    PitKoz MDL Novice

    Feb 24, 2018
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    Hehehehe, there are both versions :)
     
  8. casio4ever

    casio4ever MDL Member

    Mar 27, 2015
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  9. PitKoz

    PitKoz MDL Novice

    Feb 24, 2018
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    You go to system32\drivers from any working system and replace it, you need "take ownership" mod/tool set in registry and short-menu right click menu. And voilà.
     
  10. Radu669

    Radu669 MDL Novice

    Mar 18, 2014
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    #439 Radu669, Jun 8, 2023
    Last edited: Jun 8, 2023
    I see that people here dealing with uefi .efi files, maybe I they can figure out :
    "While initializing device VCACHE:
    Windows protection error. You need to restart your computer.
    " when booting win98 on modern hardware.(I can't create threads)
    maybe it is related to some uefi module(pcibus, csm,legacyregion)

    There is this person that has BIOSTAR X470GTA(ryzen) that can run win98 with bios version 2020.But with bios version 2021 he gets Vcache protection error.
    (MSFN forum, can't post link)

    The same person has windows 98 running on PRIME H310M-E(intel 9 gen).And he says “There are a couple of videos on YouTube with failed installations on 9th gen platform”
    (MSFN forum, can't post link)

    I have ran windows 98 on asrock h87 performance(haswell).

    I tried with z690 ud ddr4(alder lake) and Win98 does not work, Vcache protection error.

    What could be the problem uefi driver?(pcibus, csm,legacyregion). What solutions?(dsdt edit, dxe driver replacement?, patch to win98 similar to "GitHub - JHRobotics/patcher9x: Patch for Windows 9x to fix CPU issues"

    bootlog ends with: “[00142D3F] DEVICEINIT = VCACHE”

    I have BootIce installed(I don’t know assembly): msfn.org/board/uploads/monthly_2022_01/IMG_0888_.jpg.0a01710ae210bc7c8d7d4e430e8eb624.jpg

    maybe it can give some hint or an idea. After I press C to continue, “Vcache protection error” appears
     
  11. Carlos Detweiller

    Carlos Detweiller Emperor of Ice-Cream

    Dec 21, 2012
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    From what I remember, this is because the virtual disk cache is set to a too large value (it is calculated from RAM and they didn't anticipate the relative large amount of RAM we have today).
    Solution was to set the cache to a lower value (max. 512MB).

    Example in SYSTEM.INI:
    Code:
    [vcache]         
    MaxFileCache=524288
    
    Should boot again, then.
     
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