limine VS uefiseven

I assume this person meant to say `Limine'.

It's what I use for dualbooting Windows and Linux. It's really easy to Install, Use & Understand.

https://limine-bootloader.org/

They also publish a PHILOSOPHY.md page in their MS-source-git (github) that is, which is clearly offensive to us and many linux users:

I'm using Limine for bootloader, and in its documentation, in the Protocol page, we have:

Hello! While reading the Limine protocol specification i noticed that it says that "all non-usable entries (including kernel/modules) are not guaranteed any alignment, nor is it guaranteed that they do not overlap other entries". How am I supposed to get the memory size then? If the memory map entries can overlap, then summing their lengths won't work. Any help is appreciated, thanks in advance.

That's the Limine bootloader

It's way easier to use a pre-existing bootloader. I recommend Limine. It has it's own boot protocol that's designed for x86_64. You don't need any additional setup as it's already booted to long mode unlike Multiboot which needs you to switch to long mode since it's booted in protected mode. You can find an example kernel here.

It uses Limine as the Bootloader but I used Ponchos OS Dev Playlist as a base.

I installed 7 to my new pc yesterday with this. Give it a try!

Theoretically yes.

and the article mentions something potential helpful: https://github.com/manatails/uefiseven

If you absolutely need Win 7 support there's a project called uefiseven, last time I tried it on my 2600X and RX 580 I couldn't get it to boot sadly.

Windows 7 doesn’t fully support pure UEFI ootb from my understanding, all the boot related rules are confusing. Try using this: https://github.com/manatails/uefiseven Tried this and it works on an old UEFI Razer Blade 0116. Good luck to you

I found it here: https://github.com/manatails/uefiseven/issues/13

If you don't mind about UEFI, you can switch to Legacy on BIOS and boot again the DVD/USB; or if you want to use UEFI, you must use uefiseven to replace bootmgfw.efi in UEFI shell.

Without someone creating a UEFI app to implement the legacy BIOS services, it won't work without CSM. Some people actually implemented the BIOS VGA functions so Windows 7 could run on such UEFI boards(the generic video driver relies on legacy BIOS functions even in UEFI mode).