Windows 8/8.1 x86 32-bit support booting in IA32 UEFI mode from GPT disk only, OR in BIOS mode from MBR disk only.They do not support IA32 (x86 32-bit) UEFI boot from GPT/MBR disk, x86_64 UEFI boot from MBR disk, or BIOS boot from GPT disk.
#EASYBCD VISTA BOOTLOADER WINDOWS 7#
#EASYBCD VISTA BOOTLOADER WINDOWS 10#
Reason: UEFI/MBR is not supported by the Windows installer, but Windows can be manually deployed and booted in UEFI/MBR (at least Windows 10 can).
Microsoft imposes limitations on which firmware boot mode and partitioning style can be supported based on the version of Windows used: Important information Windows UEFI vs BIOS limitations 2.3.4 The EFI system partition created by Windows Setup is too small.2.3.2 Cannot boot Linux after installing Windows.2.3.1 Couldn't create a new partition or locate an existing one.1.5.1.3 Enable Fast Startup and enable hibernation.1.5.1.2 Disable Fast Startup and enable hibernation.1.5.1.1 Disable Fast Startup and disable hibernation.1.3 Bootloader UEFI vs BIOS limitations.