UefiSeven: Easily boot Windows 7 on UEFI class 3 devices

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

  1. Gelip

    Gelip MDL Senior Member

    Feb 28, 2011
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  2. ibay770

    ibay770 MDL Member

    Oct 9, 2015
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    Practically, I think installing win 8 dev preview would work better, then you can install a start menu app and make it more, 7 ish. Alternatively, if someone does manage to get a working system, perhaps sysprep it, imagw it to vhd and upload it someplace so we all can enjoy
     
  3. Gelip

    Gelip MDL Senior Member

    Feb 28, 2011
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    @Mstarter
    No, no, no - ISO UEFI boot require efisys.bin (floppy image) written to ISO bootsector !!!
    EFI\Boot is only for USB boot
     
  4. Mstarter

    Mstarter MDL Novice

    Dec 18, 2023
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    Where to get efisys.bin and how to add?
     
  5. Gelip

    Gelip MDL Senior Member

    Feb 28, 2011
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    ISO\efi\microsoft\boot\efisys.bin - you can edit e.g. in UltraISO or Virtual Floppy Drive
     
  6. biffick

    biffick MDL Novice

    Feb 14, 2022
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    #527 biffick, Sep 8, 2024
    Last edited: Sep 8, 2024
    I have Windows 7 Pro SP1 x64 iso.
    After reboot, the EFI folder is missing on the HDD. The path (HDD)\EFI\Microsoft\Boot is missing.

    But I have the path: C:\Windows\Boot\EFI\
    With files: bootmgfw.efi, bootmgr.efi, memtest.efi.
    And with folders: cs-CZ, de-DK, en-US, etc lang-folders...

    What to do?

    Thanks.
    HP Elitebook 840 G7
     
  7. Alexandros C. Couloumbis

    May 19, 2018
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    you can try MDL Win 7 Tool for SiMPLiX UpdatePack AiO ISO
     
  8. biffick

    biffick MDL Novice

    Feb 14, 2022
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    Maybe path (HDD)\EFI\Microsoft\Boot exist on hidden partition on HDD (not disk C:\)? :)

    And question.

    If I integrate the drivers for my Intel VGA Adapter into the iso (install.wim), will Windows not stopped on "Starting Windows" or stop?

    Thanks!
     
  9. Alexandros C. Couloumbis

    May 19, 2018
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    #530 Alexandros C. Couloumbis, Sep 9, 2024
    Last edited: Sep 9, 2024
    depends. For UEFI Class3, or CSM (if available) disabled, you still need something like UefiSeven, Flashboot Pro patching. GPU drivers (if available) are not guaranteed that will work under UEFI (no CSM)

    MDL Win 7 Tool for SiMPLiX UpdatePack AiO ISO integrates latest UEFI & NVME windows updates along with USB3.x drivers

    a mission (close to) impossible with Windows 7 & UEFI & CSM (if offered) disabled is video & GPU drivers

    best approach would be to get a system with CSM support & an external GPU that does offer drivers for windows 7

    you may then start playing with legacy boot, UEFI CSM on & finally UEFI CSM off

    upon success, you may create a custom windows 7 iso for a laptop or mini-PC with similar specs or simply create an external Windows 7 to Go disk
     
  10. biffick

    biffick MDL Novice

    Feb 14, 2022
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    My laptop does not have CSM.
    HP Elitebook 840 G7 (2020 y)
     
  11. biffick

    biffick MDL Novice

    Feb 14, 2022
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    Hi.

    What KB updates are required for Win7 for UEFI Class 3?
    I'm missing an image Windows7_Pro_SP1_x64.iso the EFI\Boot folder...

    Maybe the problem is the lack of KB for UEFI Class 3.
    Can you write a list of KB required for UEFI3?

    Thank you very much!
     
  12. biffick

    biffick MDL Novice

    Feb 14, 2022
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  13. imasasrar

    imasasrar MDL Novice

    Jul 18, 2023
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    I downloaded latest version of UEFI Seven. But still Windows 7 installer hangs on Starting Windows.
    I'm using Windows 7 Professional SP1 x64 ISO updated with Integrate7.
    My laptop specs are:
    Dell Inspiron 5491 2n1
    Intel UHD Graphics
    Nvidia GeForce MX230 2GB
    8GB RAM
    512GB SSD.
    Please help
     
  14. pm67310

    pm67310 MDL Guru

    Sep 6, 2011
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    Switch to iot ltsc 2021 to avoid windows bloatware and use oldnewsexplorer + openshell better than use old windows 7
    .
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  15. mathew2214

    mathew2214 MDL Novice

    Oct 19, 2024
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    #538 mathew2214, Oct 27, 2024
    Last edited: Oct 27, 2024
    this doesnt work. im running windows 7 update kb5022338 on qemu via ovmf. and this just doesnt work.
     
  16. mathew2214

    mathew2214 MDL Novice

    Oct 19, 2024
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    #540 mathew2214, Oct 28, 2024
    Last edited: Oct 28, 2024
    causes the vm to not boot. "unable to find any master store for loader /usr/shar/ovmf-x64/2016/OVMF_CODE-pure-efi.fd"

    edit: nevermind. turns out capitalization matters.

    uefiseven still doesnt allow windows 7 to boot in qemu though. using that linked ovmf build appears to change nothing except make the mouse and keyboard non-functional in the VM.

    i managed to capture the error screen though, but seem unable to upload a screenshot.
    the error is
    "unable to unlock VGA ROM memory at C0000, aborting"
    "Could not find Windows Boot Manager at '\EFI\Microsoft\Boot\bootmgfw.original.efi'

    even though that bootmgfw.original.efi DOES exist and is is named correctly. clearly a bug in UefiSeven's filesystem handler.
    trying to start in safe mode results in a freeze after loading disk.sys


    update: no longer getting the file not found error, after reinstalling windows 7 and re-applying uefiseven.
    windows7 still wont bootup at all. still gets stuck after loading disk.sys when attempting safe mode.
    trying to boot normally just results in typical stuck at "starting windows"