What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

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SONBTV
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What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by SONBTV »

What is the first available Windows 8/Server 2012 build to run on UEFI class 3? Because Windows 7/Server 2008 R2 and earlier will not run on UEFI class 3 by default due to the lack of int10h and vbios, which is only present on UEFI class 2 and Legacy BIOS, but what about Windows 8/Server 2012 builds?
I like Windows Server (all versions). But client versions of Windows is also not bad.

And there is my task, in which I have to try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, that I install and boot successfully on UEFI without CSM (without any modifications), and you could help me in doing this task, if you want.

Meow
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Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by Meow »

SONBTV wrote:
Thu Nov 18, 2021 11:03 pm
What is the first available Windows 8/Server 2012 build to run on UEFI class 3? Because Windows 7/Server 2008 R2 and earlier will not run on UEFI class 3 by default due to the lack of int10h and vbios, which is only present on UEFI class 2 and Legacy BIOS, but what about Windows 8/Server 2012 builds?
Windows 7 does actually run on UEFI without CSM. That means that Windows 8, even 7700, will run on UEFI.
Windows 10 should've been named Windows X

SONBTV
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Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by SONBTV »

Meow wrote:
Fri Nov 19, 2021 12:20 am
SONBTV wrote:
Thu Nov 18, 2021 11:03 pm
What is the first available Windows 8/Server 2012 build to run on UEFI class 3? Because Windows 7/Server 2008 R2 and earlier will not run on UEFI class 3 by default due to the lack of int10h and vbios, which is only present on UEFI class 2 and Legacy BIOS, but what about Windows 8/Server 2012 builds?
Windows 7 does actually run on UEFI without CSM. That means that Windows 8, even 7700, will run on UEFI.
No, Windows 7/Server 2008 R2 and earlier will not run on UEFI without CSM by default due to the lack of int10h and vbios and it is will result in stuck at Starting Windows (in Windows Vista/Server 2008 you just get black screen after loading files), and yes, there is a workarounds, but I am looking for first Windows 8/Server 2012 build, that runs on UEFI without CSM without any modifications, and you can try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, which will run on UEFI without CSM (again without any modifications) on VirtualBox in UEFI mode, as VirtualBox supports UEFI, but only without CSM.
I like Windows Server (all versions). But client versions of Windows is also not bad.

And there is my task, in which I have to try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, that I install and boot successfully on UEFI without CSM (without any modifications), and you could help me in doing this task, if you want.

Meow
Posts: 332
Joined: Mon Feb 03, 2020 5:28 am
Location: Earth

Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by Meow »

SONBTV wrote:
Fri Nov 19, 2021 12:54 am
Meow wrote:
Fri Nov 19, 2021 12:20 am
SONBTV wrote:
Thu Nov 18, 2021 11:03 pm
What is the first available Windows 8/Server 2012 build to run on UEFI class 3? Because Windows 7/Server 2008 R2 and earlier will not run on UEFI class 3 by default due to the lack of int10h and vbios, which is only present on UEFI class 2 and Legacy BIOS, but what about Windows 8/Server 2012 builds?
Windows 7 does actually run on UEFI without CSM. That means that Windows 8, even 7700, will run on UEFI.
No, Windows 7/Server 2008 R2 and earlier will not run on UEFI without CSM by default due to the lack of int10h and vbios and it is will result in stuck at Starting Windows (in Windows Vista/Server 2008 you just get black screen after loading files), and yes, there is a workarounds, but I am looking for first Windows 8/Server 2012 build, that runs on UEFI without CSM without any modifications, and you can try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, which will run on UEFI without CSM (again without any modifications) on VirtualBox in UEFI mode, as VirtualBox supports UEFI, but only without CSM.
I’ve run Windows 7 with UEFI on VMWare, which doesn’t have CSM support for UEFI. This is also possible on physical hardware, which I have also done. Virtualization software will vary from one to another, and VirtualBox does not seem to use UEFI firmware that is close to what is actually used on physical hardware.
Windows 10 should've been named Windows X

AS95678
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Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by AS95678 »

To clear the air:

no: windows 7, out of the box will NOT run on a class 3 system. it can be modified to run on class 3 systems, but it won't natively run by default due to how it utilizes legacy interrupts.

VMware's UEFI is NOT a class 3 implementation. To demonstrate how a true class 3 system would behave with windows 7, try running stock Windows 7 SP1 on something like Hyper-V Gen 2, or any Surface tablet (x86-64)

I guarantee you for certain it won't be fun.

SONBTV
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Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by SONBTV »

AS95678 wrote:
Fri Nov 19, 2021 3:01 am
To clear the air:

no: windows 7, out of the box will NOT run on a class 3 system. it can be modified to run on class 3 systems, but it won't natively run by default due to how it utilizes legacy interrupts.

VMware's UEFI is NOT a class 3 implementation. To demonstrate how a true class 3 system would behave with windows 7, try running stock Windows 7 SP1 on something like Hyper-V Gen 2, or any Surface tablet (x86-64)

I guarantee you for certain it won't be fun.
But what the first Windows 8/Server 2012 build that runs on UEFI class 3 out of the box?
I like Windows Server (all versions). But client versions of Windows is also not bad.

And there is my task, in which I have to try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, that I install and boot successfully on UEFI without CSM (without any modifications), and you could help me in doing this task, if you want.

Meow
Posts: 332
Joined: Mon Feb 03, 2020 5:28 am
Location: Earth

Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by Meow »

SONBTV wrote:
Fri Nov 19, 2021 3:13 am
AS95678 wrote:
Fri Nov 19, 2021 3:01 am
To clear the air:

no: windows 7, out of the box will NOT run on a class 3 system. it can be modified to run on class 3 systems, but it won't natively run by default due to how it utilizes legacy interrupts.

VMware's UEFI is NOT a class 3 implementation. To demonstrate how a true class 3 system would behave with windows 7, try running stock Windows 7 SP1 on something like Hyper-V Gen 2, or any Surface tablet (x86-64)

I guarantee you for certain it won't be fun.
But what the first Windows 8/Server 2012 build that runs on UEFI class 3 out of the box?
I’m guessing it would be 7989? I’ve seen it running on an Intel Mac with UEFI, but that isn’t a class 3 UEFI implementation.
Windows 10 should've been named Windows X

SONBTV
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Posts: 26
Joined: Mon Jul 27, 2020 1:41 pm
Location: Earth

Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by SONBTV »

Meow wrote:
Fri Nov 19, 2021 3:56 am
SONBTV wrote:
Fri Nov 19, 2021 3:13 am
AS95678 wrote:
Fri Nov 19, 2021 3:01 am
To clear the air:

no: windows 7, out of the box will NOT run on a class 3 system. it can be modified to run on class 3 systems, but it won't natively run by default due to how it utilizes legacy interrupts.

VMware's UEFI is NOT a class 3 implementation. To demonstrate how a true class 3 system would behave with windows 7, try running stock Windows 7 SP1 on something like Hyper-V Gen 2, or any Surface tablet (x86-64)

I guarantee you for certain it won't be fun.
But what the first Windows 8/Server 2012 build that runs on UEFI class 3 out of the box?
I’m guessing it would be 7989? I’ve seen it running on an Intel Mac with UEFI, but that isn’t a class 3 UEFI implementation.
Again,
you can try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, which will run on UEFI without CSM (again without any modifications) on VirtualBox in UEFI mode, as VirtualBox supports UEFI, but only without CSM.
I like Windows Server (all versions). But client versions of Windows is also not bad.

And there is my task, in which I have to try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, that I install and boot successfully on UEFI without CSM (without any modifications), and you could help me in doing this task, if you want.

AS95678
FTP Access
Posts: 115
Joined: Sat Jan 16, 2016 5:06 pm

Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by AS95678 »

it's whatever the earliest build is that doesn't rely on the VgaSave driver to implement legacy BIOS interrupts and can instead use the UEFI graphics output protocol in it's place.

I don't know what that build is to be honest

SONBTV
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Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by SONBTV »

AS95678 wrote:
Fri Nov 19, 2021 7:59 pm
it's whatever the earliest build is that doesn't rely on the VgaSave driver to implement legacy BIOS interrupts and can instead use the UEFI graphics output protocol in it's place.

I don't know what that build is to be honest
If you don't know, I will last time tell you, you can try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, that you success to run on UEFI without CSM (again without any modifications) on VirtualBox in UEFI mode, as VirtualBox supports UEFI, but only without CSM, or on Hyper-V in Generation 2 mode, and I currently too lazy to verify, but I just want to know what first build of Windows 8/Server 2012 will run on UEFI without CSM.
I like Windows Server (all versions). But client versions of Windows is also not bad.

And there is my task, in which I have to try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, that I install and boot successfully on UEFI without CSM (without any modifications), and you could help me in doing this task, if you want.

Meow
Posts: 332
Joined: Mon Feb 03, 2020 5:28 am
Location: Earth

Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by Meow »

SONBTV wrote:
Fri Nov 19, 2021 10:13 pm
AS95678 wrote:
Fri Nov 19, 2021 7:59 pm
it's whatever the earliest build is that doesn't rely on the VgaSave driver to implement legacy BIOS interrupts and can instead use the UEFI graphics output protocol in it's place.

I don't know what that build is to be honest
If you don't know, I will last time tell you, you can try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, that you success to run on UEFI without CSM (again without any modifications) on VirtualBox in UEFI mode, as VirtualBox supports UEFI, but only without CSM, or on Hyper-V in Generation 2 mode, and I currently too lazy to verify, but I just want to know what first build of Windows 8/Server 2012 will run on UEFI without CSM.
No one is going to download every single Windows 8 / Server 2012 build and boot them like this.
Windows 10 should've been named Windows X

AS95678
FTP Access
Posts: 115
Joined: Sat Jan 16, 2016 5:06 pm

Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by AS95678 »

Meow wrote:
Sat Nov 20, 2021 1:22 am
SONBTV wrote:
Fri Nov 19, 2021 10:13 pm
AS95678 wrote:
Fri Nov 19, 2021 7:59 pm
it's whatever the earliest build is that doesn't rely on the VgaSave driver to implement legacy BIOS interrupts and can instead use the UEFI graphics output protocol in it's place.

I don't know what that build is to be honest
If you don't know, I will last time tell you, you can try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, that you success to run on UEFI without CSM (again without any modifications) on VirtualBox in UEFI mode, as VirtualBox supports UEFI, but only without CSM, or on Hyper-V in Generation 2 mode, and I currently too lazy to verify, but I just want to know what first build of Windows 8/Server 2012 will run on UEFI without CSM.
No one is going to download every single Windows 8 / Server 2012 build and boot them like this.
Exactly. I don't have the time nor the patience to test every. single. build. to see if they're capable of booting on a class 3 system (note: booting, not running).

there's other endeavors I'd much rather put my time into.

SONBTV
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Posts: 26
Joined: Mon Jul 27, 2020 1:41 pm
Location: Earth

Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by SONBTV »

AS95678 wrote:
Sat Nov 20, 2021 3:45 am
Meow wrote:
Sat Nov 20, 2021 1:22 am
SONBTV wrote:
Fri Nov 19, 2021 10:13 pm
AS95678 wrote:
Fri Nov 19, 2021 7:59 pm
it's whatever the earliest build is that doesn't rely on the VgaSave driver to implement legacy BIOS interrupts and can instead use the UEFI graphics output protocol in it's place.

I don't know what that build is to be honest
If you don't know, I will last time tell you, you can try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, that you success to run on UEFI without CSM (again without any modifications) on VirtualBox in UEFI mode, as VirtualBox supports UEFI, but only without CSM, or on Hyper-V in Generation 2 mode, and I currently too lazy to verify, but I just want to know what first build of Windows 8/Server 2012 will run on UEFI without CSM.
No one is going to download every single Windows 8 / Server 2012 build and boot them like this.
Exactly. I don't have the time nor the patience to test every. single. build. to see if they're capable of booting on a class 3 system (note: booting, not running).

there's other endeavors I'd much rather put my time into.
Ok, I will try myself, if I will have time to do that, and then I will report you first Windows 8/Server 2012 build, that bootable on UEFI without CSM by default

7700 = No
7746 = No
7814 = No
7850 = No
Offtopic Comment
archive.org has an extremely slow download speed, and I can't download from dl.bobpony.com due to the download speed drops to 0kb/s and it stays forever
Last edited by SONBTV on Sun Nov 21, 2021 4:04 am, edited 1 time in total.
I like Windows Server (all versions). But client versions of Windows is also not bad.

And there is my task, in which I have to try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, that I install and boot successfully on UEFI without CSM (without any modifications), and you could help me in doing this task, if you want.

Meow
Posts: 332
Joined: Mon Feb 03, 2020 5:28 am
Location: Earth

Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by Meow »

SONBTV wrote:
Sat Nov 20, 2021 4:40 am
AS95678 wrote:
Sat Nov 20, 2021 3:45 am
Meow wrote:
Sat Nov 20, 2021 1:22 am
SONBTV wrote:
Fri Nov 19, 2021 10:13 pm
AS95678 wrote:
Fri Nov 19, 2021 7:59 pm
it's whatever the earliest build is that doesn't rely on the VgaSave driver to implement legacy BIOS interrupts and can instead use the UEFI graphics output protocol in it's place.

I don't know what that build is to be honest
If you don't know, I will last time tell you, you can try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, that you success to run on UEFI without CSM (again without any modifications) on VirtualBox in UEFI mode, as VirtualBox supports UEFI, but only without CSM, or on Hyper-V in Generation 2 mode, and I currently too lazy to verify, but I just want to know what first build of Windows 8/Server 2012 will run on UEFI without CSM.
No one is going to download every single Windows 8 / Server 2012 build and boot them like this.
Exactly. I don't have the time nor the patience to test every. single. build. to see if they're capable of booting on a class 3 system (note: booting, not running).

there's other endeavors I'd much rather put my time into.
Ok, I will try myself, if I will have time to do that, and then I will report you first Windows 8/Server 2012 build, that bootable on UEFI without CSM by default

7700 = No
7746 = No
7814 = No
Offtopic Comment
archive.org has an extremely slow download speed, and I can't download from dl.bobpony.com due to the download speed drops to 0kb/s and it stays forever
7850 was apparently the first build to support 32-bit UEFI booting, as well as exFAT booting.
Windows 10 should've been named Windows X

SONBTV
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Posts: 26
Joined: Mon Jul 27, 2020 1:41 pm
Location: Earth

Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by SONBTV »

Meow wrote:
Sun Nov 21, 2021 12:22 am
SONBTV wrote:
Sat Nov 20, 2021 4:40 am
AS95678 wrote:
Sat Nov 20, 2021 3:45 am
Meow wrote:
Sat Nov 20, 2021 1:22 am
SONBTV wrote:
Fri Nov 19, 2021 10:13 pm

If you don't know, I will last time tell you, you can try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, that you success to run on UEFI without CSM (again without any modifications) on VirtualBox in UEFI mode, as VirtualBox supports UEFI, but only without CSM, or on Hyper-V in Generation 2 mode, and I currently too lazy to verify, but I just want to know what first build of Windows 8/Server 2012 will run on UEFI without CSM.
No one is going to download every single Windows 8 / Server 2012 build and boot them like this.
Exactly. I don't have the time nor the patience to test every. single. build. to see if they're capable of booting on a class 3 system (note: booting, not running).

there's other endeavors I'd much rather put my time into.
Ok, I will try myself, if I will have time to do that, and then I will report you first Windows 8/Server 2012 build, that bootable on UEFI without CSM by default

7700 = No
7746 = No
7814 = No
7850 = No
Offtopic Comment
archive.org has an extremely slow download speed, and I can't download from dl.bobpony.com due to the download speed drops to 0kb/s and it stays forever
7850 was apparently the first build to support 32-bit UEFI booting, as well as exFAT booting.
The 32-bit UEFI boot and exFAT boot is a completely different things from UEFI class 3 boot
I like Windows Server (all versions). But client versions of Windows is also not bad.

And there is my task, in which I have to try to boot Windows 8/Server 2012 builds starting with 7700 up to this build, that I install and boot successfully on UEFI without CSM (without any modifications), and you could help me in doing this task, if you want.

Meow
Posts: 332
Joined: Mon Feb 03, 2020 5:28 am
Location: Earth

Re: What is the first available Windows 8/Server 2012 build to run on UEFI class 3?

Post by Meow »

SONBTV wrote:
Sat Nov 20, 2021 4:40 am
Offtopic Comment
I can't download from dl.bobpony.com due to the download speed drops to 0kb/s and it stays forever
That sounds like a problem with your network. I downloaded 7997 from there and I got a consistent 10mb/s download speed.

I'm going to install said build now.

Installer boots on VirtualBox's UEFI Firmware

The OS runs!

Image
Offtopic Comment
I did actually edit this post from 7997
Windows 10 should've been named Windows X

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