look here i must decode ACT 2015 & ADD rev.12 EFI & grub4dos multi boot usb Boot grub4dos 1. format usb fat32 2. use bootice.exe install MBR (Windows NT 6.x MBR) & install PBR (grub4dos 0.4.5c/0.4.6a fat/fat32/ntfs/exfat) to usb 3. put some files (ATI15.IMA & ADD12.IMA) to /HBCD/Image Boot EFI 1. put some files (bootx64.efi, bootx64.xml, dat8.dat, dat9.dat, dat12.dat, dat13.dat) to folder /efi/boot Link download (copy all files & same folder to usb) https://drive.google.com/folderview?id=0Bw1WFl6gXiOhMkhPNEZkR1FjYVU&usp=sharing
