hi trifero!
my first attempt was as described here:
https://dortania.github.io/OpenCore-Legacy-Patcher/WINDOWS.html#installation-process
... and there i first tried the standard "microsoft method" with windows 11 - the only thing i changed was the creation of the usb stick - i did it on another windows machine with the help of rufus, to overcome windows 11's hardware restrictions right from the beginning. then i got that annoying bluescreen - i assume it was quite short of the end of the whole installation process and after some necessary restarts before
next i tried the same method with windows 10
again the bluescreen - at around the same moment of the installation processs
i also tried the creation of the usb-stick with the sonoma buit-in bootcamp-assistant. in this case i just created the usb stick, but then used the installation method as in my first attempt -> bluescreen
finally i went some steps back and successfully installed windows 8.1 following the attempt 1 method... and afterwards tried to upgrade that with the by rufus created windows 11 usb stick -> bluescreen
all these tries i did using opencore's bootpicker (efi installed on a separate fat32 partition as described in the link above)
i am just confused because i already had running windows 11 on that macbook pro 11,1 some time ago. first next to high sierra and then next to big sur before i installed opencore and did a completely clean and successful installation of sonoma on a new ssd.
and thats where i'm now - i have nicely running sonoma and a also good and working windows 8.1
but i want windows 11
puhh - i just don't havy any clue where my mistake(s) is (are) ...