Well, you need to know that the GPT partition style is not recognized by all previous versions of Windows 7. It is recommended for disks larger than 2 TB, or disks used on Itanium-based computers. When you try to boot your Windows 7 from a GPT drive, you must be using 64-bit Windows 7 and have a UEFI motherboard.

Does Windows 7 support GPT?

First of all, you cannot install Windows 7 32 bit on GPT partition style. All versions can use GPT partitioned disk for data. Booting is only supported for 64 bit editions on EFI/UEFI-based system. … The other is to make selected disk compatible with your Windows 7, viz, change from GPT partition style to MBR.

Does Windows 7 need GPT or MBR?

GPT is more modern, and is required for booting Windows systems in UEFI mode. MBR is required for booting older Windows systems in BIOS mode, although the 64-bit version of Windows 7 can also boot in UEFI mode.