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
    424
    293
    10
  2. siliconbeaver

    siliconbeaver MDL Member

    Apr 29, 2022
    214
    142
    10
    I did take Win10 boot.wim. hence boot and install completed.

    when reboot, my asus got passed. then finished install. Win7 run fine.
    but my Dell 7070 (9th gen Intel CPU) stuck at windows logo. freezing-up.

    I agree, the acpi.sys file not much help.I will try more *.efi files.


     
  3. liliactr

    liliactr MDL Addicted

    Sep 3, 2009
    651
    252
    30
    If you find a good efi share here too. I have not try flashboot bootmgfw.efi Want to try that too.
     
  4. siliconbeaver

    siliconbeaver MDL Member

    Apr 29, 2022
    214
    142
    10
    I tried more. now PC got boot looping. I didn't meet this issue before.

    looks a problem related with USB driver as mouse/keyboard got locked with Windows logo. couldn't move them any more. Their LED were on. went off when Windows logo start.

    my boot/install.wim are using same USB 3.0/3.1/3.2 drivers. boot/install no problem. but re-boot got freezing-up.
     
  5. liliactr

    liliactr MDL Addicted

    Sep 3, 2009
    651
    252
    30
    #586 liliactr, Dec 21, 2024
    Last edited: Dec 21, 2024
    All usb3.0 drivers are problematic. Better not to integrate them and install after setup.
     
  6. shhnedo

    shhnedo MDL Expert

    Mar 20, 2011
    1,911
    2,587
    60
    Have you tried USB 3/XHCI driver stack for Windows 7?
     
  7. siliconbeaver

    siliconbeaver MDL Member

    Apr 29, 2022
    214
    142
    10
    I was exactly using daniel_k's latest version. my asus works fine with it.HP 800 i5-8500/9500 also runs fine with it.

    but Dell couldn't go through reboot. failed to complete install.

     
  8. Gelip

    Gelip MDL Senior Member

    Feb 28, 2011
    424
    293
    10
  9. siliconbeaver

    siliconbeaver MDL Member

    Apr 29, 2022
    214
    142
    10
    Thanks Gelip,

    so, for my Intel CPU. The right one is USB_3x_fix2.zip than USB_3x_fixed.

    let me try out.


     
  10. ibay770

    ibay770 MDL Member

    Oct 9, 2015
    201
    59
    10
    Any luck with surface 3 pro?
     
  11. casio4ever

    casio4ever MDL Member

    Mar 27, 2015
    141
    29
    10
    #592 casio4ever, May 10, 2025
    Last edited: May 17, 2025
    1. Ask @Alexandros C. Couloumbis About How He Achieved His Breakthrough Using REFInd
    2. Ask @canonkong After Posting Your Specs (Especially Your GPU).
    They Are Only Who Can Help You Figuring Out Your Problem With Surface 3 Pro.
     
  12. ibay770

    ibay770 MDL Member

    Oct 9, 2015
    201
    59
    10
    Not sure if refind fixes the acpi issue.
     
  13. Muffin Top

    Muffin Top MDL Novice

    Jun 12, 2025
    48
    24
    0
    #595 Muffin Top, Jun 12, 2025
    Last edited by a moderator: Jun 12, 2025

    Could I ask a dumb question? Are bootmgfw.efi and boot.wim the only Win 10 files I need to transplant into my Win 7 installation media to install Win 7 with the Win 10 bootloader?

    The concept is I have a Win 10 machine with mixed MBR/UEFI support. I'd like to add a clean install of Win 7 (via MBR) and then run MBR2GPT so I can switch it over to a UEFI system for secure booting.

    My plan is that I'll keep my Win 7 and Win 10 systems on separate disks, so I can keep them independently bootable via BIOS. I prefer Win 7 for everyday use, but I don't want to throw out my Win 10 system. That's why I'm trying to get secure boot working on Win 7.

    No luck via installing Win 7 with Flashboot Pro. I would guess it won't secure boot because Flashboot's modified bootloader defeats the signature requirement for secure boot?


    Could I ask a dumb question? Do you need anything else from Win 10 other than boot.wim? Do I also need to add Win 10's bootmgfw.efi to my Win 7 installation media? Or do I need a few other files as well?

    I guess I also need Bootx64.efi and memtest.efi. I'm trying to figure out what I need before I begin fiddling with it.
     
  14. Muffin Top

    Muffin Top MDL Novice

    Jun 12, 2025
    48
    24
    0
    Thanks so much! I can see that you know this, but I'm not familiar with a couple parts of your cool tech lingo.

    Typically Win 10 boot.wim, then Win 7 boot.wim? If we could break that down into 2 or 3 steps for a novice?

    This is confusing for me, because looking at the winntsetup screen in that sevens-link, I'm not sure how to slipstream the Win 10 bootloader files into my Win 7 UEFI set-up.

    In principle, it seems like this should be manageable. Copy a few Win 10 files into my Win 7 installation media, and then I can install Win 7 using the Win 10 bootloader.

    Do I access the slipstream by clicking on the Tweaks>>> button in winntsetup?

    To simplify this, I don't need drivers, because I'm installing Win 7 into an Optiplex 7050, which has enough native driver support to get a good result without adding any drivers. After I install Win 7, I add a Dell ethernet driver via CD. That's the only outside assistance needed to get a fully functional system on the 7050.

    By way of full disclosure, I'm not sure how to resolve the Int10 issue without Flashboot Pro. The 7050 has native VGA hardware, so I wonder if that means a workaround is available post-installation? Maybe the UEFI GOP can access the 7050's native VGA hardware?
     
  15. Seven4ever

    Seven4ever MDL Member

    May 16, 2023
    119
    50
    10
    It depends not only on processor, I have an i-9100 and W7 on UEFI and secure boot.