I have a Lenovo IdeaPad 3 with 11th Gen Intel Tiger Lake and Intel Iris Xe Graphics. I want to see if Windows 7 will work, but unfortunately I don't have Legacy Mode and when I tried it with K4Sum1's 2020 ISO and UEFI7, but after the first stage of setup completed (copying/expanding the files, etc) and it restarted, it showed the Windows logo animation, but it restarted while the logo was just 4 colored dots. I used the F8 options to disable automatic restart on system failure and it just got stuck at the starting windows logo (at the part where it would normally restart itself) with no BSOD.
It could be the result of the NVME driver, but if it were, I'd imagine setup would not be able to detect the WesternDigital NVME SSD that I have, and also, wouldn't a 0x07b BSOD occur before I even get to the first part of setup? It could also be due to a non-ACPI compliant BIOS seeing as this uses Windows 8's PE. I'm only guessing this as someone else on this forum got to a similar spot and then when he switched to Legacy Mode, he got the 0x0A5 non-ACPI compliant BIOS error. I'm gonna try the solution here https://www.wincert.net/forum/topic/18176-vistaw2k8-x64-on-modern-hardware/#comment-137330 and see what happens.
Also, I found a modded Intel Graphics driver with support up to 10th Generation Comet Lake Intel for Windows 7/8.1 and I modified the inf he provided to add in support for other Intel processors such as Tiger Lake, 12th Generation Alder Lake, and Jasper Lake, etc, but after installing it within Windows 8.1 (that I currently have upP, I get a Code 43 which is "Windows has stopped this device because it reported errors". After looking at the inf some more, I found more sections labeled ; CML and what not so I amended those to also include ; TGL, ; ADL, ; JSL, etc, but after installing the INF again, I got "This driver is not compatible with this version of Windows".
I believe I need to modify igdkmd64.sys to account for the new processors I added in to the inf, but I'm not sure how to do that. What programs do you recommend for decompiling/editing a .sys file? It also looks like the driver only supports Q1 stepping, so I may need to amend it so it can support more steppings.
Any help on this is greatly appreciated!