Years back, I added Windows setup ISO to boot menu on MBR disk, as ISO, as extracted ISO, and even put it on a VHD on computer's hdd and booted it using easybcd. Now on UEFI(GPT), I wanted to put the ISO on a separate partition, like you do WinRE, and add it to the bcd boot menu to install Windows from it but easybcd isn't working for that kind of HDD, option greyed out. However, like it is posted on the web to use fatc32 w/NTFS partitions on USB, can copy extracted ISO files over to ithe USB to boot, I have done the same thing for the HDD, created a FAT32 and NTFS, and it shows up on the CMOS setup(BIOS UEFI) as a device to boot, along with all other bootable devices or like when you press F9 for bootable devices. How can I add it to the BCD as an option as an ISO or extracted ?
First extract iso to another partitions in the same drive It's usually load boot.wim file into ram So you can use bootice to edit current bcd store To load this file into ram It's super easy