Unless you need it for legacy support, you should always use GPT where possible, it's just objectively the better option and makes MBR obsolete.GPT is more robust and provides better data protection and recovery options compared to MBR, but MBR is still necessary for compatibility with older systems.To access the UEFI menu, create a bootable USB media:

1. Format a USB device in FAT32 .
2. Create a directory on the USB device: /efi/boot/
3. Copy the file shell. efi to the directory created above.
4. Rename the file shell.efi to BOOTX64.efi.
5. Restart the system and enter the UEFI menu.
6. Select the option to Boot from USB.

What is the boot partition for GPT : On GPT drives, this is known as the EFI System Partition, or the ESP. This partition is usually stored on the primary hard drive. The device boots to this partition. The minimum size of this partition is 100 MB, and must be formatted using the FAT32 file format.

Should I use MBR or GPT in Rufus

For UEFI systems, select GPT as the partition scheme. For Legacy BIOS (or mixed mode) systems, choose MBR. To check your system's firmware type, use the "msinfo32" command in the Run dialog.

Is Windows 10 install USB GPT or MBR : We recommend performing Windows® 10 installations enabling UEFI with a GUID Partition Table (GPT). Some features may not be available if you use the Master Boot Record (MBR) style partition table. We highly recommended performing a backup of your data.

exFAT is the ideal file system for USB flash drives. It doesn't have the 4GB file size limit and it's compatible with most Windows and Mac operating systems. Older operating systems might require an update to properly read and write to a USB drive with an exFAT file system.

Rufus is a utility that helps format and create bootable USB flash drives, such as USB keys/pendrives, memory sticks, etc. It can be especially useful for cases where: you need to create USB installation media from bootable ISOs (Windows, Linux, UEFI, etc.)

Why does UEFI not recognize bootable USB

Navigate to the Boot Options menu and ensure the Boot Mode is set to EFI (or UEFI). Make sure that the USB Boot Priority is enabled. Save the changes and exit.The disk must have an EFI partition to boot. You must have the built-in Diskpart.exe and Bootcfg.exe utilities to create bootable mirror volumes on GPT disks. You can do some of these steps with the Disk Management console, but others you can do only with the built-in Diskpart.exe utility.Yes, Windows can be installed on a GPT disk. The basic MBR drive format does not support drives over 4TB. It's also difficult to set up more than four partitions. The GPT drive format lets you set up drives that are larger than 4 terabytes (TB) and lets you easily set up as many partitions as you need.

We recommend performing Windows® 10 installations enabling UEFI with a GUID Partition Table (GPT). Some features may not be available if you use the Master Boot Record (MBR) style partition table. We highly recommended performing a backup of your data.

Is ISO GPT or MBR : The terms MBR or GPT have no relation to an ISO. A ISO file is an image file of a block device containing an ISO 9660 filesystem. It contains an exact representation, sector-by-sector, of the data as it would have been stored on a CD of indeterminate size.

When to use GPT or MBR in Rufus : MBR and GPT if you select MBR partition. It will boot in Legacy if your laptop support Legacy. You can select MBR. If you have a modern laptop or PC after 2010 you can select GPT.

Which partition should be bootable

system partition

The system partition (or system volume) is a primary partition that contains the boot loader, a piece of software responsible for booting the operating system. This partition holds the boot sector and is marked active.

The read and write speeds of NTFS are also faster than that of FAT32. The FAT32 file system is suitable for smaller capacity flash memory devices (such as memory cards, USB drives, and other storage devices), while the NTFS file system is suitable for large capacity disks.GPT is typically used with larger storage devices like hard drives and SSDs. However, you can burn an ISO file to a CD using software like Rufus or other CD burning tools. The ISO file can contain the necessary files for booting in UEFI mode, even if the CD itself does not use the GPT partition scheme.

Will UEFI boot from NTFS : UEFI:NTFS is a generic bootloader, that is designed to allow boot from NTFS or exFAT partitions, in pure UEFI mode, even if your system does not natively support it.