

If Windows is booted in Legacy BIOS mode, it can be installed only to an MBR disk. if Windows is booted in UEFI mode, it can be installed only to a GPT disk. In general, Windows forces type of partitioning depending on the firmware mode used, i.e. If the value is Legacy, Windows boots in BIOS/MBR mode.
#Clover efi special edition windows 7
Very few recent systems pre-installed with Windows 7 are known to boot in x86_64 UEFI/GPT mode by default. MOST of the systems pre-installed with Windows 7 x86_64, irrespective of Service Pack level, bitness or edition (SKU), boot in BIOS/MBR mode by default.All systems pre-installed with Windows XP, Vista or 7 32-bit, irrespective of Service Pack level, bitness, edition (SKU) or presence of UEFI support in firmware, boot in BIOS/MBR mode by default.Windows 11 only supports x86_64 and a boot in UEFI mode from GPT disk.They do not support IA32 UEFI boot, x86_64 UEFI boot from MBR disk, or BIOS boot from GPT disk. Windows 8/8.1 and 10 x86_64 versions support booting in x86_64 UEFI mode from GPT disk only, OR in BIOS mode from MBR disk only.On market, the only systems known to ship with IA32 (U)EFI are some old Intel Macs (pre-2010 models?) and Intel Atom System-on-Chip (Clover trail and Bay Trail) Windows Tablets, which boot ONLY in IA32 UEFI mode and ONLY from GPT disk. They do not support x86_64 UEFI boot from GPT/MBR disk, x86_64 UEFI boot from MBR disk, or BIOS boot from GPT disk. Windows 8/8.1 and 10 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. Windows Vista (SP1 and above, not RTM) and Windows 7 x86_64 versions support booting in x86_64 UEFI mode from GPT disk only, OR in BIOS mode from MBR disk only.It supports only BIOS boot and only from MBR disk.

It does not support x86_64 UEFI or IA32 (x86 32-bit) UEFI boot. Windows Vista RTM x86_64 (only RTM) version support booting in BIOS mode from MBR disks only, not from GPT disks.They support only BIOS boot and only from MBR disk. They do not support x86_64 UEFI or IA32 (x86 32-bit) UEFI boot.

