I tried 3 different drivers that should of worked. Let me explain what was happening, reboot, blank screen for 8 minutes ish, and then my system would reboot, and then after around 15 minutes it still didnt show up. Gave up there. Should I have waited longer after the reboot? Please tag me if you respond.

If you don't have a signed driver of you didn't insert the certificates into the installation, the video driver won't be loaded during setup so you won't get past the black screen. See my guide from my posts above. I advise you to follow my tutorial in order to self create a certificate, sign the driver yourself with it and then integrate everything into the installation.

Just use this: https://pastebin.com/d4hN4ih0
First you follow my guide step by step. If it doesn't work, you need to use a different driver from the uhd 630 topic (there are at least 2 versions) and skip the driver modify section, just only sign the driver.

To make it easier please let us know what CPU do you have.

Zitat von Lost_N_BIOS im Beitrag #15

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@bloodhand Can you help him insert the certificates, or is that in your linked info/guides above? I think Chinobino has linked him to a confirmed working driver set, but unsure if that is same ones you are talking about (I think it's Nvidia ones chinobino linked)

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I DID IT. THANKS GUYS <3

Great! For your CPU this driver is the best: Win 7 x64 Coffee Like UHD 630 Video driver (2)

Test a h264/h265 video file (not in the browser) to make sure video acceleration and decoding works.

@Kebicle - Awesome to hear you got it working now!!

Thanks for your help on this one @bloodhand !!!

@bloodhand That one didnt work for me but another one in the same thread did

Good to know. Can you post the link to it, maybe someone having the same CPU will need it? Thanks

Zitat von zir_blazer im Beitrag #2

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Windows 7 does NOT support pure UEFI without CSM because it has one specific routine that relies on executing the legacy VBIOS: https://www.linux-kvm.org/downloads/lers...per-c770f8c.txt

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Zitat von noInk im Beitrag #24

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Zitat von zir_blazer im Beitrag #2

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Windows 7 does NOT support pure UEFI without CSM because it has one specific routine that relies on executing the legacy VBIOS: https://www.linux-kvm.org/downloads/lers...per-c770f8c.txt

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@zir_blazer
The issue described on the above paper is relative to the OVMF video driver implementation.
On legacy hardware and IRQ the INT 10 (Video Driver) is used to retrieve the VESA_BIOS_EXTENSIONS (VBE) function.
The VBE information block allow to determine the capabilities supported by the display adapter.

A Compatibility Support Module (CSM) is not a requirement for the WINDOWS 7 EFI installer.
A functional Graphics Output Protocol (GOP) produced by an EFI video driver IS.

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Zitat

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Windows® 7, Windows Vista® with Service Pack 1 (SP1), Windows Server® 2008 R2 and Windows Server® 2008

Support UEFI 2.0 or later on 64-bit systems. They also support BIOS-based PCs, and UEFI-based PCs running in legacy BIOS-compatibility mode.

Support on Class 2 systems running in legacy BIOS-compatibility mode by using a CSM, so they can use the legacy BIOS INT10 features.

Are not supported on Class 3 systems, because these operating systems assume the presence of legacy BIOS INT10 support in the firmware, which is not available in a Class-3 UEFI implementation.

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The whole point is that you CANNOT run Windows 7 in pure UEFI mode, be it either TianoCore/OVMF for Virtual Machines or native use cases like UEFI Class 3 Devices (Or for anyone that disables CSM), since Windows goes nuts due to the lack of a INT10 handler, which is the reason why you require CSM enabled and a VBIOS. The VgaShim is pretty much a small UEFI Driver that provides the INT10 interface that Windows 7 expects in an UEFI only environment. And while it was developed for Virtual Machine use cases, some people did ports intended to run in native, like this one, which is an UEFI executable that has to be loaded before Windows Boot Managers: https://github.com/driver1998/VgaShim

Note that the only W7 component that requires the INT10 handler appear to be the Boot Loader. I have been reading that some people replaces it with the W10 one or some hacks like that, and it seem to work. But it doesn't work out-of-the-box.

If you disable Standard VGA Driver, of course using the Win10 EFI boot file on the EFI partition, then you can get past that. Of course with a black screen during boot until the specific GPU driver is loaded. For that you must integrate that specific driver in a signed version. If you have an unofficial modded driver, then you might need to sign the drivers yourself and also integrate the certificate into the installation. If you don't know which driver you need, then it is difficult because you have to literally try every driver, signing, integrating certificate, installing...

I will try myself VgaShim when I will need to reinstall Windows on my laptop. Probably not very soon because I don't use Windows Update and in case of problems I always have a working backup of the installation with all settings that I restore with Symantec Ghost.

@zir_blazer

It's a complex argument but like you are pointing out it mainly depend by the bios vendor EFI implementation and how the manufacturer along the CPU platform maker want to target the board for the market.
It take around 3KB of unoptimized runtime code to run a protocol instance and a timer for the legacy environment. CSM is nothing more then a wild non-standard tool of common procedure to boot a legacy installation.
HIGH/LOW in general to speak won't go away by removing interface or precluding the user access with systematic down-phase or targeted changes.

UefiSeven

Hello,

Glad to discover this board. I think someone will reply here.

I posted this on a differernt forum and waited (for a month!) for a reply, only to be directed to an over the top, complex solution!

Zitat

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Hi,

I'm new here and also not very good at this.

I updated the iso file with the package listed on the first page. Windows 7 does install but freezes at the logo page (the flying windows one). I try to boot it up in safe mode and after loading multiple drivers, it freezes at "Loaded: \windows\system32\drivers\ahcix64s.sys".

I'm on:

Dell Latitude 3400
Intel i5 8265u
UHD 620 Graphics

I don't quite fully understand it but I think it doesn't support CSM.

Please help.

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I was convinced that something simpler should exist. Then I discovered UEFISEVEN. Now, I am not sure what slipstream is, so I tried to follow the simple steps:

* Rename bootx64.efi at (UsbDrive)\EFI\Boot\ to bootx64.original.efi -- OK, done.

* Unpack bootx64.efi from UefiSeven archive and copy it to (UsbDrive)\EFI\Boot\ --now, where is the bootx64.efi file in the downloaded uefi-seven zip file? There is no file like that. How is one to copy it to the USB when this file doesn't even exist? inside the Uefiseven folder there are 'C', 'H' kind of files..

This sure must sound stupid to veterans here, but would really appreciate if people can help. I absolutely hate Win10 and want to run the good old Win 7 on my new laptop.

Thanks!

Hi. Please can someone guide me.