for anyone that dont want the hassle of editing the iso file what i did and worked for me (windows 11 25h2 build: 26200):
1. Save the following content as winpeshl.ini (thanks to
@Young Min Oh)
2. open the windows 11 iso with 7zip navigate to sources folder and extract boot.wim
3.open the extracted boot.wim with 7 zip navigate to Windows\System32 and drop winpeshl.ini in there and exit 7zip it will ask you if you want to save it press yes
4.use rufus to make a usb with the original win 11 iso after it finish open the usb and go to the "sources" folder and replace boot.wim file with the one we crated in step 3, Done
i tried to add my unattended.xml file in the usb and it work normally (my xml file answer all the question all the way to the desktop and even run custom script all of them worked)
The whole point for switching to old setup for me is on the hard drive selection tab i use "tab" on the keyboard to quickly select partitions and delete them , in the new UI you need to use the mouse or like 8 tabs to reach the partitions i hate it as an it that do alot of formats daily, hope that help someone.