I have a Tablet PC that runs Windows x86 and Ubuntu x64 (mixed mode) on UEFI 32 bits with GRUB2 installed. I've tried to boot a Windows x64 WinPE image using wimboot program on GRUB2 because it appears to support Intel IA. The problem is that, when it boots, a color screen appears and I've to force shutdown. Can I do anything to make it boot or it's incompatible with my hardware?
To make it boot I mount a loop device with the iso. My configuration on grub2:
menuentry "Windows 10 64 bits" {
insmod fat
insmod iso9660
set root=(hd0,gpt3)
loopback loop /winpe.iso
linux16 /wimboot
initrd16 \
newc:bcd:(loop)/Boot/BCD \
newc:boot.sdi:(loop)/Boot/boot.sdi \
newc:boot.wim:(loop)/sources/boot.wim
}
And GRUB shows no errors when loading it.