Hello Everyone.............
Please check following discussion in 'reboot.pro' too. And please try to help me................
http://reboot.pro/topic/19864-boot-uefi-win81updatese-x64-bootwim-bios-grub4dos-easy2boot-from-hidden-partition-of-dual-partition-removable-ufd/#entry184905 Currently I have following configuration in my Removable USB Drive.
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Partition 1 - Visible to Windows - 5 GB FAT32 - Storage Purpose
Partition 2 - Invisible to Windows - 9.7 GB FAT32 type Active Partition - Easy2Boot Files with .imgPTN files like 'Win81.imgPTNLBAa'
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and want to switch into following given Desired Configuration in order to make both 'Boot Manager' and 'Grub4dos' Menu entry on my Dual Partition Removable USB Drive to boot UEFI + BIOS directly from USB with Boot Manager Menu. So that'Boot Manager' menu entry will boot to 'Win8.1UpdateSE x64 boot.wim' in both UEFI and BIOS mode while 'Grub4dos'menu entry will boot to 'Easy2Boot' in BIOS
mode only. i.e.
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Boot UEFI + BIOS with 'Win8.1UpdateSE x64 boot.wim' direct from Boot Manager Menu into RAMDISK
Boot UEFI - F12 - BIOS - Grub4dos - (Easy2Boot) +/ (Win XP/7/8 VHD - Ramdisk)
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Desired Configuration-
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Partition 1 - Visible to Windows - 5 GB exFAT - Contains Win8.1 install ISO + WinNTSetup (BootIce included in tools folder).
Partition 2 - Invisible to Windows - 9.7 GB FAT32 type Active Partition; used UEFI_MULTI to copy 'Win8.1SE_x64 boot.wim' file to root, an several other ISO's to directory Images, and make the boot files and EFI folder also Grub4dos mbr and grldr and make BCD option to boot Grub4dos (E2B) + Easy2Boot Files (All Payload files will be .imgPTN type) + manually added BootIce.
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I think above Configuration should work in case of 'Fixed USB Drives', But don't know what will happen in case of 'Removable USB Drive' ?
So please research above Desired Configuration carefully for 'Removable USB Drive' and confirm if it work for 'Removable USB Drive' ?
If above Desired Configuration does not work for 'Removable USB Drive' , then please suggest me some other possible Configurations which my work.............
Note- After booting from USB with 'Win8.1SE_x64 boot.wim' ,I can use portable App 'WinNTSetup_x64.exe' to mount XP/7/8 Setup ISO ( ISO's of Partition 1 or Internal HDD) in ImDisk Virtual Drive.
Thanks for your precious Support...............