In XP OS I can prepare MultiBoot USB-harddisk having Win8 Recovery RAMDISK UEFI Secure Boot support. XP OS is possible but then Win7 VHD Boot Menu entry and Win8 Boot Menu cannot be made. The program UEFI_MULTI.exe can be used in Windows 7 Or Windows 8 OS. In BIOS mode I support booting with Windows 7 and XP VHD's copied to NTFS Windows 8 System partition of USB-harddisk
In UEFI-mode I cannot boot from USB with Windows 7 or Other previous Windows System So now really Everything At Once is working.Īt present I know that Windows 8 (flat) and Win 8 Recovery RAMDISKĪre booting OK from USB in UEFI Secure Boot by using Win8 efi\boot\boot圆4.efiĪnd Linux Parted Magic is booting OK in UEFI > rEFInd > Grub2, but only when Secure Boot is Disabled. In my case BIOS Grub4dos booting Image files on UEFI computer is only possibleĪfter switching in UEFI the Advanced OS setting from Win8 to Win7 / Otherįor booting Windows 8 then the UEFI Advanced OS setting Win8 is used. Gigabyte GA-Z77MX-D3H allow to use F12 Boot MenuĪnd Select either BIOS or UEFI booting from USB-harddisk. Now I can boot from USB-harddisk on BIOS and on UEFI computers with Win8 (flat)Īnd with Grub4dos using all kind of Image files (Linux Parted Magic + LiveXP + 7PE + Portable XP + Win7) Use Win 8 tools bootsect.exe to reset MBR bootcode and FAT32 PBR according to Win8Īnd use bcdboot.exe to create the EFI folder for booting Windows 8 from FAT32 partition.Īfter Install of Win 8 then bcdedit.exe can be used to add Grub4dos entry in BootBCD for booting Image files. Manual procedure using Windows 8 Tools to make USB-harddisk bootable on UEFI computer: Boot and EFI folder are created on FAT32 partition.
Install of Win 8 on USB using UEFI computer and latest beta version of WinNTSetup is OKĭid not use any other tool. GPT partitioning is not needed and unwanted because it would only boot on UEFI firmware. The first Boot partition E: is FAT32 Win8 Format and contains only the EFI folderĪnd the second partition M: is NTFS and filled by using WinNTSetup. On computer with UEFI firmware I can Install Windows 8 on normal USB-harddisk having MBR and three primary partitions. The boot CD's were not compatible with UEFI. UEFI does not like Grub4dos and so all boot Images failed. On trying to boot with my existing USB-harddisk Or CD / DVD then initially Everything Failed. Windows 8 came on computer with UEFI firmware and GPT partitioning of the internal harddisk. UEFI Windows 8 + BIOS Grub4dos = MultiBoot USB-Harddisk
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