Hello guys. Finally, with wimboot systems work fine in all computer. This was the code: #!ipxe cpuid --ext 29 && set arch amd64 || set arch x86 kernel http://${fog-ip}/iso/asus/133/wimboot initrd http://${fog-ip}/iso/asus/133/BOOT/BCD BCD initrd http://${fog-ip}/iso/asus/133/BOOT/BOOT.SDI boot.sdi initrd -n boot.wim http://${fog-ip}/iso/asus/133/SOURCES/BOOT.WIM boot.wim boot Thank all, a lot.