So I got a hold of the Windows Vista extended iso, modified the acpi.sys file with the same patch K4sum1 gave me for 7, and it got past the point where it would crash normally without it. After that point however, it still freezes, this time I assume due to a different reason. The boot log mode doesn't generate a log, safe mode crashes right after disk.sys, and I had no luck with any other boot options. I am on MBR, booting with CSM on a Z590. There is no blue screen, even though I have CSM enabled, it just freezes, not even trying to reboot.

This is the point it freezes at, about quarter to half a second before the animation would normally finish (I think this iso uses the Windows 7 installer)
The regular updated iso won't work because it doesn't have the pre patched winload so it just stops when it notices a patched file